Error An error has occurred while fetching the JSON data: HTTP 500 status code. Internal Server Error

[aliteejay]

We operate a J4.2.9 website, php version of 8.1, with VM 4.2.12 component, however we getting prompted to fix an internal server error, which sounds rocket science to me, please can we get help fixing this first, before attempting to upgrade to latest Joomla version, appreciate every and any help

[NBPunchard]

Hi, unable to help, but I am getting the same error, hope someone is reading these and can help.
Regards

[ceford]

Can you post a screenshot showing where this error occurs? Also, in Global Configuration, set Debug to Yes and Error Reporting to Maximum. In the logging panel turn on Log Almost Everything. Trigger the error and then, with a text editor, look in administrator/logs/... for a recent log. Is there anything to indicate where the error occurred? After testing, turn logging and debug off again.

These sorts of problems occur when a JavaScript request triggers a server error which does not return the expected json format. They are difficult to diagnose.

[NBPunchard]

I did the settings as suggested, the only error log in admin/logs was dated the 23rd April, so not todays date. Last fwe lines of text below, but it looks just like login errors from someone trying to hack into site.
2023-04-18T02:17:39+00:00 INFO 45.170.254.119 joomlafailure Username and password do not match or you do not have an account yet.
2023-04-18T02:17:42+00:00 INFO 45.170.254.119 joomlafailure Username and password do not match or you do not have an account yet.
2023-04-18T02:17:46+00:00 INFO 45.170.254.119 joomlafailure Username and password do not match or you do not have an account yet.
2023-04-18T02:17:47+00:00 INFO 45.170.254.119 joomlafailure Username and password do not match or you do not have an account yet.
2023-04-18T02:17:47+00:00 INFO 45.170.254.119 joomlafailure Username and password do not match or you do not have an account yet.
2023-04-18T07:19:49+00:00 INFO 171.101.101.178 joomlafailure Username and password do not match or you do not have an account yet.
2023-04-19T04:14:54+00:00 INFO 222.252.28.31 joomlafailure Username and password do not match or you do not have an account yet.
2023-04-21T14:36:43+00:00 INFO 190.72.247.23 joomlafailure Username and password do not match or you do not have an account yet.
2023-04-23T15:08:43+00:00 INFO 202.29.97.4 joomlafailure Username and password do not match or you do not have an account yet.

See screenshot of the error when updating.

[ceford]

Can you confirm whether the message appears when you load the page or when you click the Update button?

[ceford]

Try this: set Debug System to Yes and Error Reporting to Maximum. Go to the Joomla Update page. Error reported?

Open a new tab and enter this url:

Code: Select all

http://localhost/j425/administrator/index.php?option=com_joomlaupdate&task=update.batchextensioncompatibility

but replace

Code: Select all

http://localhost/j425/

with your own domain details.

What do you see? I get

Code: Select all

{"success":true,"message":null,"messages":null,"data":{"compatibility":[],"extensions":[]}}

although Firefox displays it in json rather than raw format.

[maestro3229]

Was this resolved? I have the same issue now with the 4.3.4 to 4.4.0 update. The error occurs after opening the update component and just as the Extensions checkmark appears. I followed the instructions above and got the same result: {"success":true,"message":null,"messages":null,"data":{"compatibility":[],"extensions":[]}}

[simonlindsay]

Hello,

I have the same error in Red at the top of the page when I first click the update button - "An error has occurred while fetching the JSON data: HTTP 500 status code. Internal Server Error."

The 'Required Settings' are fine.

There are yellow warning triangles for 'recommended settings' - Display Errors and Output buffering both with a yellow 'On'.

The 'Extensions are showing quite a number of modules, plugins etc. "It was not possible to check the compatibility of these plugins. The request to the update server either timed out or returned an error."

My question is, will Joomla still work but only the extension fail or could the whole site break?

Many thanks for any advice.

Simon

[[email protected]]

I tired the command in a new tab and it worked correctly.

Tried again in Joomla updates and got error again.



This is happening in more than one of my Joomla 4.4.0 sites

[ceford]

I was really hoping that the url version of the javascript call would return a stack trace to help us figure out what is wrong. Did you get a stack trace for the 500 Error? If so, post it here. Otherwise I am guessing that a request for extension information timed out. Try going to System / Update Sites and click on each external link to an xml file in turn. Do any of them hang?

[dunxmax]

Hi all,

I have a site that is ready to be upgraded from J4-J5 and I'm getting this same error when I click through to the Joomla update page.

Has anyone figured out what is causing this problem?

Is it OK to ignore it or should the problem be resolved before upgrading?

Screenshot attached.

D

[simonlindsay]

I'm still waiting for a response as well. Somebody at Joomla must know a fix or workaround for this issue, it is a major bug in my opinion and is stopping me from upgrading two of my sites. I really can't afford for my sites to be broken and have to start again.

[gws]

If it was a major bug we all would have the problem and we do not...
Post the FPA so we can look at your hosting environment.

[simonlindsay]

What is FPA please and how do I locate it, post it etc?
Thanks.

[toivo]

What is FPA please and how do I locate it, post it etc?

The purpose of the Forum Post Assistant (FPA) script is to help us assist you. It displays the configuration of Joomla and the web server in a standard, easily understood format and an inventory of all the extensions using BBCode, copied and pasted into a forum post.

The link to the FPA instructions can be found in the red area at the top of each forum thread:
Forum Post Assistant - If you are serious about wanting help, you should use this tool to help you post.

[dunxmax]

Hi all, here's the FPA from my site. Hope this shows where the problem might be:

[15-Jul-2024 08:36:50 UTC] PHP Deprecated: substr_count(): Passing null to parameter #1 ($haystack) of type string is deprecated in /home/customer/www/duncanm23.sg-host.com/public_html/fpa-en.php on line 106

Joomla! Instance :: Joomla! 4.4.6-Stable (Pamoja) 9-July-2024
Joomla! Configured :: Yes | Read-Only (444) |
Configuration Options :: Offline: false | SEF: true | SEF Suffix: true | SEF ReWrite: true | .htaccess/web.config: Yes | GZip: false | Cache: false | CacheTime: 15 | CacheHandler: file | CachePlatformPrefix: false | FTP Layer: false | Proxy: false | LiveSite: | Session lifetime: 15 | Session handler: database | Shared sessions: false | SSL: 2 | Error Reporting: none | Site Debug: false | Language Debug: false | Default Access: Public | Unicode Slugs: false | dbConnection Type: mysqli | PHP Supports J! 4.4.6: Yes | Database Supports J! 4.4.6: Yes | Database Credentials Present: Yes |

Host Configuration :: OS: Linux | OS Version: 6.6.21-MCIclouder470 | Technology: x86_64 | Web Server: Apache | Encoding: | System TMP Writable: Yes | Free Disk Space : 677.76 GiB |

PHP Configuration :: Version: 8.1.29 | PHP API: apache2handler | Session Path Writable: Yes | Display Errors: 0 | Error Reporting: 30709 | Log Errors To: php_errorlog | Last Known Error: 15th July 2024 08:37:24. | Register Globals: | Magic Quotes: | Safe Mode: | Allow url fopen: 1 | Open Base: | Uploads: 1 | Max. Upload Size: 256M | Max. POST Size: 256M | Max. Input Time: 120 | Max. Execution Time: 120 | Memory Limit: 768M

Database Configuration :: Version: 8.0.36-28 (Client:mysqlnd 8.1.29) | Database Size: 7.33 MiB | #of Tables with config prefix:  98 | #of other Tables:  0 | User Privileges : GRANT ALL

PHP Extensions :: Core (8.1.29) | date (8.1.29) | libxml (8.1.29) | openssl (8.1.29) | pcre (8.1.29) | sqlite3 (8.1.29) | zlib (8.1.29) | bcmath (8.1.29) | bz2 (8.1.29) | calendar (8.1.29) | ctype (8.1.29) | curl (8.1.29) | dba (8.1.29) | dom (20031129) | enchant (8.1.29) | hash (8.1.29) | fileinfo (8.1.29) | filter (8.1.29) | ftp (8.1.29) | gd (8.1.29) | gettext (8.1.29) | gmp (8.1.29) | json (8.1.29) | iconv (8.1.29) | SPL (8.1.29) | intl (8.1.29) | session (8.1.29) | mbstring (8.1.29) | standard (8.1.29) | mysqlnd (mysqlnd 8.1.29) | exif (8.1.29) | mysqli (8.1.29) | PDO (8.1.29) | pdo_mysql (8.1.29) | pdo_pgsql (8.1.29) | pdo_sqlite (8.1.29) | pgsql (8.1.29) | Phar (8.1.29) | posix (8.1.29) | pspell (8.1.29) | Reflection (8.1.29) | imap (8.1.29) | shmop (8.1.29) | SimpleXML (8.1.29) | soap (8.1.29) | sockets (8.1.29) | sodium (8.1.29) | sysvmsg (8.1.29) | sysvsem (8.1.29) | tidy (8.1.29) | tokenizer (8.1.29) | xml (8.1.29) | xmlreader (8.1.29) | xmlwriter (8.1.29) | xsl (8.1.29) | zip (1.19.5) | apache2handler (8.1.29) | memcached (3.2.0) | Zend OPcache (8.1.29) | Zend Engine (4.1.29-dev) |
Potential Missing Extensions ::

Switch User Environment :: PHP CGI: No | Server SU: No | PHP SU: No | Potential Ownership Issues: No

Apache Modules :: core | mod_authn_file | mod_authn_core | mod_authz_host | mod_authz_groupfile | mod_authz_user | mod_authz_core | mod_access_compat | mod_auth_basic | mod_so | mod_watchdog | mod_include | mod_substitute | mod_deflate | http_core | mod_mime | mod_log_config | mod_env | mod_mime_magic | mod_expires | mod_headers | mod_unique_id | mod_setenvif | mod_version | mod_slotmem_shm | event | mod_unixd | mod_autoindex | mod_cgi | mod_dir | mod_userdir | mod_alias | mod_rewrite | mod_php | mod_dtimeout | mod_filter | mod_robots | mod_rpaf | mod_simpleupdate | mod_backtrace | mod_whatkilledus | mod_idleshutdown | Apache |
Potential Missing Modules :: mod_ssl |

Core Folders :: images/ (755) | components/ (755) | modules/ (755) | plugins/ (755) | language/ (755) | templates/ (755) | cache/ (755) | logs/ (755) | tmp/ (755) | administrator/components/ (755) | administrator/modules/ (755) | administrator/language/ (755) | administrator/templates/ (755) | administrator/logs/ (---) | api/ (755) |

Elevated Permissions (First 10) ::

Database statistics :: Uptime: 904938 | Threads: 10 | Questions: 725579168 | Slow queries: 1725 | Opens: 30483171 | Flush tables: 3 | Open tables: 3072 | Queries per second avg: 801.799 |

Components :: Site ::
Core ::
3rd Party::

Components :: Admin ::
Core :: com_postinstall (4.0.0) 1 | com_joomlaupdate (4.0.3) 1 | com_banners (4.0.0) 1 | com_modules (4.0.0) 1 | com_contenthistory (4.0.0) 1 | com_tags (4.0.0) 1 | com_workflow (4.0.0) 1 | com_languages (4.0.0) 1 | com_ajax (4.0.0) 1 | com_config (4.0.0) 1 | com_search (3.0.0) 1 | com_installer (4.0.0) 1 | com_scheduler (4.1.0) 1 | com_login (4.0.0) 1 | com_newsfeeds (4.0.0) 1 | com_checkin (4.0.0) 1 | com_fields (4.0.0) 1 | com_users (4.0.0) 1 | com_mails (4.0.0) 1 | com_messages (4.0.0) 1 | com_associations (4.0.0) 1 | com_guidedtours (4.3.0) 1 | com_cpanel (4.0.0) 1 | com_actionlogs (3.9.0) 1 | com_privacy (3.9.0) 1 | com_templates (4.0.0) 1 | com_menus (4.0.0) 1 | com_categories (4.0.0) 1 | com_cache (4.0.0) 1 | com_wrapper (4.0.0) 1 | com_media (3.0.0) 1 | com_plugins (4.0.0) 1 | com_admin (4.0.0) 1 | com_finder (4.0.0) 1 | com_redirect (4.0.0) 1 | com_content (4.0.0) 1 |
3rd Party:: com_phocagallery (5.0.1) 1 | com_xmap (2.3.4) 1 | com_slideshowck (2.5.7) 1 | Slideshow CK (2.5.4) ? | COM_COOKIESPOLICYNOTIFICATIONBAR (4.3.5) 1 | com_phocamaps (5.0.2) 1 | Accordeon Menu CK (3.3.8) 1 | ACCORDEONMENUCK (3.3.9) 1 |

Modules :: Site ::
Core :: mod_menu (3.0.0) 1 | mod_feed (3.0.0) 1 | mod_articles_popular (3.0.0) 1 | mod_articles_archive (3.0.0) 1 | mod_tags_similar (3.1.0) 1 | mod_articles_categories (3.0.0) 1 | mod_custom (3.0.0) 1 | mod_tags_popular (3.1.0) 1 | mod_breadcrumbs (3.0.0) 1 | mod_whosonline (3.0.0) 1 | mod_articles_news (3.0.0) 1 | mod_search (3.0.0) 1 | mod_stats (3.0.0) 1 | mod_syndicate (3.0.0) 1 | mod_articles_latest (3.0.0) 1 | mod_banners (3.0.0) 1 | mod_articles_category (3.0.0) 1 | mod_random_image (3.0.0) 1 | mod_related_items (3.0.0) 1 | mod_users_latest (3.0.0) 1 | mod_footer (3.0.0) 1 | mod_login (3.0.0) 1 | mod_finder (3.0.0) 1 | mod_articles_news_adv (1.4.5) 0 | mod_wrapper (3.0.0) 1 | mod_languages (3.5.0) 1 |
3rd Party:: Accordeon Menu CK (3.3.8) 1 | Responsive FastSlider (3.0.0) 1 |

Modules :: Admin ::
Core :: mod_menu (3.0.0) 1 | mod_feed (3.0.0) 1 | mod_toolbar (3.0.0) 1 | mod_quickicon (3.0.0) 1 | mod_logged (3.0.0) 1 | mod_title (3.0.0) 1 | mod_stats_admin (3.0.0) 1 | mod_multilangstatus (3.0.0) 1 | mod_frontend (4.0.0) 1 | mod_custom (3.0.0) 1 | mod_version (3.0.0) 1 | mod_messages (4.0.0) 1 | mod_latest (3.0.0) 1 | mod_user (4.0.0) 1 | mod_privacy_dashboard (3.9.0) 1 | mod_post_installation_messages (4.0.0) 1 | mod_privacy_status (4.0.0) 1 | mod_login (3.0.0) 1 | mod_popular (3.0.0) 1 | mod_guidedtours (4.3.0) 1 | mod_latestactions (3.9.0) 1 | mod_sampledata (3.8.0) 1 | mod_submenu (3.0.0) 1 | mod_loginsupport (4.0.0) 1 |
3rd Party::

Libraries ::
Core ::
3rd Party:: file_fof40 (4.1.0) ? | file_fof30 (3.7.0) ? |

Plugins ::
Core :: plg_api-authentication_token (4.0.0) 1 | plg_api-authentication_basic (4.0.0) 0 | plg_captcha_recaptcha_invisible (3.8) 0 | plg_captcha_recaptcha (3.4.0) 0 | plg_quickicon_downloadkey (4.0.0) 1 | plg_quickicon_privacycheck (3.9.0) 1 | plg_quickicon_eos (4.4.0) 1 | plg_quickicon_extensionupdate (3.0.0) 1 | plg_quickicon_phpversioncheck (3.7.0) 1 | plg_quickicon_overridecheck (4.0.0) 1 | plg_quickicon_eos310 (3.10.0) ? | plg_quickicon_joomlaupdate (3.0.0) 1 | plg_extension_finder (4.0.0) 1 | plg_extension_namespacemap (4.0.0) 1 | plg_extension_joomla (3.0.0) 1 | plg_webservices_tags (4.0.0) 1 | plg_webservices_redirect (4.0.0) 1 | plg_webservices_messages (4.0.0) 1 | plg_webservices_privacy (4.0.0) 1 | plg_webservices_installer (4.0.0) 1 | plg_webservices_content (4.0.0) 1 | plg_webservices_modules (4.0.0) 1 | plg_webservices_menus (4.0.0) 1 | plg_webservices_languages (4.0.0) 1 | plg_webservices_config (4.0.0) 1 | plg_webservices_plugins (4.0.0) 1 | plg_webservices_newsfeeds (4.0.0) 1 | plg_webservices_banners (4.0.0) 1 | plg_webservices_templates (4.0.0) 1 | plg_webservices_users (4.0.0) 1 | plg_webservices_media (4.1.0) 1 | plg_editors-xtd_module (3.5.0) 1 | plg_editors-xtd_menu (3.7.0) 1 | plg_editors-xtd_pagebreak (3.0.0) 1 | plg_editors-xtd_readmore (3.0.0) 1 | plg_editors-xtd_fields (3.7.0) 1 | plg_editors-xtd_article (3.0.0) 1 | plg_editors-xtd_image (3.0.0) 1 | plg_filesystem_local (4.0.0) 1 | plg_privacy_consents (3.9.0) 1 | plg_privacy_content (3.9.0) 1 | plg_privacy_actionlogs (3.9.0) 1 | plg_privacy_user (3.9.0) 1 | plg_privacy_message (3.9.0) 1 | plg_system_stats (3.5.0) 1 | plg_system_guidedtours (4.3.0) 1 | plg_system_httpheaders (4.0.0) 0 | plg_system_languagecode (3.0.0) 0 | plg_system_shortcut (4.2.0) 1 | plg_system_redirect (3.0.0) 0 | plg_system_remember (3.0.0) 1 | plg_system_languagefilter (3.0.0) 0 | plg_system_jooa11y (4.2.0) 1 | plg_system_privacyconsent (3.9.0) 0 | plg_system_actionlogs (3.9.0) 0 | plg_system_accessibility (4.0.0) 0 | plg_system_fields (3.7.0) 1 | plg_system_logrotation (3.9.0) 1 | plg_system_highlight (3.0.0) 1 | plg_system_log (3.0.0) 1 | plg_system_updatenotification (3.5.0) 1 | plg_system_cache (3.0.0) 0 | plg_system_schedulerunner (4.1) 1 | plg_system_task_notification (4.1) 1 | plg_system_logout (3.0.0) 1 | plg_system_debug (3.0.0) 1 | plg_system_webauthn (4.0.0) 1 | plg_system_sef (3.0.0) 1 | plg_system_sessiongc (3.8.6) 1 | plg_system_skipto (4.0.0) 1 | plg_installer_override (4.0.0) 1 | plg_installer_urlinstaller (3.6.0) 1 | plg_installer_folderinstaller (3.6.0) 1 | plg_installer_packageinstaller (3.6.0) 1 | plg_installer_webinstaller (4.0.0) 1 | plg_content_confirmconsent (3.9.0) 0 | plg_content_vote (3.0.0) 1 | plg_content_pagebreak (3.0.0) 1 | plg_content_emailcloak (3.0.0) 1 | plg_content_loadmodule (3.0.0) 1 | plg_content_finder (3.0.0) 0 | plg_content_fields (3.7.0) 1 | plg_content_pagenavigation (3.0.0) 1 | plg_content_joomla (3.0.0) 1 | plg_workflow_featuring (4.0.0) 1 | plg_workflow_publishing (4.0.0) 1 | plg_workflow_notification (4.0.0) 1 | plg_multifactorauth_fixed (4.2.0) 0 | plg_multifactorauth_yubikey (3.2.0) 0 | plg_multifactorauth_email (4.2.0) 0 | plg_multifactorauth_webauthn (4.2.0) 0 | plg_multifactorauth_totp (3.2.0) 0 | plg_finder_contacts (3.0.0) 1 | plg_finder_tags (3.0.0) 1 | plg_finder_content (3.0.0) 1 | plg_finder_newsfeeds (3.0.0) 1 | plg_finder_categories (3.0.0) 1 | plg_media-action_crop (4.0.0) 1 | plg_media-action_resize (4.0.0) 1 | plg_media-action_rotate (4.0.0) 1 | plg_user_token (3.9.0) 1 | plg_user_terms (3.9.0) 0 | plg_user_contactcreator (3.0.0) 0 | plg_user_profile (3.0.0) 0 | plg_user_joomla (3.0.0) 1 | plg_search_contacts (3.0.0) 1 | plg_search_tags (3.0.0) 1 | plg_search_content (3.0.0) 1 | plg_search_newsfeeds (3.0.0) 1 | plg_search_categories (3.0.0) 1 | plg_sampledata_multilang (4.0.0) 1 | plg_fields_color (3.7.0) 1 | plg_fields_imagelist (3.7.0) 1 | plg_fields_radio (3.7.0) 1 | plg_fields_checkboxes (3.7.0) 1 | plg_fields_url (3.7.0) 1 | plg_fields_user (3.7.0) 1 | plg_fields_integer (3.7.0) 1 | plg_fields_text (3.7.0) 1 | plg_fields_list (3.7.0) 1 | plg_fields_calendar (3.7.0) 1 | plg_fields_usergrouplist (3.7.0) 1 | plg_fields_media (3.7.0) 1 | plg_fields_textarea (3.7.0) 1 | plg_fields_editor (3.7.0) 1 | plg_fields_sql (3.7.0) 1 | plg_fields_subform (4.0.0) 1 | plg_task_requests (4.1) 1 | plg_task_check_files (4.1) 1 | plg_task_site_status (4.1) 1 | plg_task_demo_tasks (4.1) 1 | plg_authentication_joomla (3.0.0) 1 | plg_authentication_ldap (3.0.0) 0 | plg_authentication_cookie (3.0.0) 1 | plg_behaviour_versionable (4.0.0) 1 | plg_behaviour_taggable (4.0.0) 1 | plg_behaviour_compat (4.4.0) 1 | plg_actionlog_joomla (3.9.0) 1 |
3rd Party:: PLG_SYSTEM_COOKIESPOLICYNOTIFICATIO (4.3.5) ? | PLG_SYSTEM_WEB357FRAMEWORK (1.9.2) 0 | PLG_INSTALLER_COOKIESPOLICYNOTIFICA (4.3.5) ? | plg_content_phocamaps (5.0.1) 0 | plg_editors_tinymce (5.10.9) 1 | plg_editors_codemirror (5.65.15) 1 | Xmap - Kunena Plugin (3.0.0) 0 | Xmap - SobiPro Plugin (2.0.2) 0 | Xmap - Virtuemart Plugin (2.0.3) 0 | Xmap - WebLinks Plugin (2.0.1) 0 | XMAP_PLUGIN_K2 (1.3) 0 | Xmap - Mosets Tree Plugin (2.0.2) 0 | Xmap - Content Plugin (2.0.4) 1 | PLG_TASK_DELETECPNBLOGS (4.3.5) 1 | PLG_AJAX_COOKIESPOLICYNOTIFICATIONB (4.3.5) ? | PLG_AJAX_WEB357FRAMEWORK (1.9.2) 0 |

Templates :: Site :: cassiopeia (1.0) 1 | JoostrapBase-v3-4 (3.4) 0 | joomstarter (1.42) 1 |
Templates :: Admin :: atum (1.0) 1 |

[AMurray]

Turn on the PHP Error reporting (done through your web host e.g. cPanel PHP settings, or ask your host for assistance), or you can set it on through Joomla's global configuration (under system (or server)).

Currently, Error Reporting is reported as "None" in the FPA. Error 500 is a generic server error (doesn't tell you much at first glance). With Error Reporting turned on, and set to Maximum that will give us more detail about the specific error. Post any error messages you see on the screen to the thread here.

"Display Errors" - you wouldn't leave that in the On setting for a production site, but for troubleshooting temporarily, it's OK.

"Output buffering", the Pre update says while the recommended setting is "Off" the site will work with this "on".

Perhaps the problem is your template. Switch to Cassiopeia, and check if the error 500 disappears. You may need to find an update for your template, or use an alternative compatible with J5.

This may have an impact: Potential Missing Modules :: mod_ssl - make sure mod_ssl is active in PHP settings (in your hosting environment - in cPanel etc).

[dunxmax]

Turn on the PHP Error reporting (done through your web host e.g. cPanel PHP settings, or ask your host for assistance), or you can set it on through Joomla's global configuration (under system (or server)).

This is now on. I'm not getting any further indication of what is causing the error other than the error message itself.

Currently, Error Reporting is reported as "None" in the FPA. Error 500 is a generic server error (doesn't tell you much at first glance). With Error Reporting turned on, and set to Maximum that will give us more detail about the specific error. Post any error messages you see on the screen to the thread here.

I turned this on and set it to maximum - again there are no further error messages other than the error message itself

"Display Errors" - you wouldn't leave that in the On setting for a production site, but for troubleshooting temporarily, it's OK.

OK, this is now on.

"Output buffering", the Pre update says while the recommended setting is "Off" the site will work with this "on".

This is now on.

Perhaps the problem is your template. Switch to Cassiopeia, and check if the error 500 disappears. You may need to find an update for your template, or use an alternative compatible with J5.

I switched to cassiopeia - no change.

This may have an impact: Potential Missing Modules :: mod_ssl - make sure mod_ssl is active in PHP settings (in your hosting environment - in cPanel etc).

I contacted host support. They said this was all OK.

I have been through switching off plugins that I've added. No change.

I took a look in my browser's console error messages in Firefox and Chrome - messages are slightly different.

They are as follows:
Firefox:
Source map error: request failed with status 404
Resource URL: https://www.duncanm23.sg-host.com/media ... n.js?4.1.7
Source Map URL: skipto.min.js.map/*@end

Chrome:
Failed to load resource: the server responded with a status of 500 ()
The link address for this is: https://www.duncanm23.sg-host.com/admin ... patibility

Any further help, greatly appreciated.

Thanks

D

[Mr. Wimpy]

Based on your FPA:
- Xmap has been discontinued a long time ago, big chance it's not compatible with J4/5
- Responsive Fastslider is a J3 extension, and it's developers stopped developing Joomla extensions.

Uninstall these extensions and find alternatives if you still need its functionality.
SlideshowCK is an alternative to Responsive Fastslider, but...

- The components AccordeonmenuCK and SlideshowCK are mentioned twice. Why?


0. Install Akeeba Backup and make a backup of your site
1. Use Akeeba Kickstart to install your backed up site locally with WAMP, MAMP or XAMPP.
2. Clean up your local site, see also notes above.
3. Update all extensions first
4. See if you can update your local site now.

[ceford]

Login to your administrator interface and try this in your browser url bar:

Code: Select all

https://www.duncanm23.sg-host.com/administrator/index.php?option=com_joomlaupdate&task=update.batchextensioncompatibility

With error reporting on and set to maximum you may gate a stack trace.

[dunxmax]

OK, sorry ceford I didn't see your last reply. For some reason I'm not getting replies come through to my email.

Anyway, I just thought I would give an update.

I contacted the host, they couldn't find what was causing the problem.

So I figured I would have to go through all the extensions to see which extension was causing the issue.

To cut a corner, I disabled all of them and I still got the error message.

So, basically I gave up and decided to do try the upgrade anyway.

It worked without any problems. I guess there's still some sort of underlying problem, which I might find when I try the next update - we shall see!

[Per Yngve Berg]

Go to System->Update->Update Sites

It shows a list of servers that updates are pulled from. I suspect one of them are mis-behaving.

[jhalex]

I'm having the same issue on my site. In case it helps, here's a stack trace out of the everything log.

Code: Select all

024-09-09T14:55:57+00:00       INFO 108.7.186.179      updater Loading information from update site #13 with name "Joomla! Update Component" and URL https://update.joomla.org/core/extensions/com_joomlaupdate.xml took 0.09 seconds
2024-09-09T14:56:00+00:00       CRITICAL 108.7.186.179  error   Uncaught Throwable of type Error thrown with message "Attempt to assign property "html" on null". Stack trace: #0 [internal function]: Joomla\CMS\Updater\Update->_startElement(Object(XMLParser), 'html', Array)
#1 [ROOT]/libraries/src/Updater/Update.php(526): xml_parse(Object(XMLParser), '<!DOCTYPE html>...')
#2 [ROOT]/administrator/components/com_joomlaupdate/src/Model/UpdateModel.php(1658): Joomla\CMS\Updater\Update->loadFromXml('https://joomla....', 4)
#3 [ROOT]/administrator/components/com_joomlaupdate/src/Model/UpdateModel.php(1529): Joomla\Component\Joomlaupdate\Administrator\Model\UpdateModel->checkCompatibility('https://joomla....', '5.1.4')
#4 [ROOT]/administrator/components/com_joomlaupdate/src/Controller/UpdateController.php(591): Joomla\Component\Joomlaupdate\Administrator\Model\UpdateModel->fetchCompatibility('10137', '5.1.4')
#5 [ROOT]/libraries/src/MVC/Controller/BaseController.php(693): Joomla\Component\Joomlaupdate\Administrator\Controller\UpdateController->batchextensioncompatibility()
#6 [ROOT]/libraries/src/Dispatcher/ComponentDispatcher.php(143): Joomla\CMS\MVC\Controller\BaseController->execute('batchextensionc...')
#7 [ROOT]/libraries/src/Component/ComponentHelper.php(361): Joomla\CMS\Dispatcher\ComponentDispatcher->dispatch()
#8 [ROOT]/libraries/src/Application/AdministratorApplication.php(143): Joomla\CMS\Component\ComponentHelper::renderComponent('com_joomlaupdat...')
#9 [ROOT]/libraries/src/Application/AdministratorApplication.php(186): Joomla\CMS\Application\AdministratorApplication->dispatch()
#10 [ROOT]/libraries/src/Application/CMSApplication.php(293): Joomla\CMS\Application\AdministratorApplication->doExecute()
#11 [ROOT]/administrator/includes/app.php(61): Joomla\CMS\Application\CMSApplication->execute()
#12 [ROOT]/administrator/index.php(32): require_once('/PATH/TO/ROOT/HIDDEN/...')
#13 {main}

I've occasionally found weird errors that seem to stem from this being a site that I've continually upgraded from back in the J1.5 days. Every once in a while some old php file is sitting around that mucks things up. Not sure if that is in any way relevant to this issue, but thought I'd mention it just in case.