White page after login on backend

[alsunna]

Hi Guys,

J1.5 Front end works fine, but backend always returns to white page. No changes made no mods or themes.

I tried to truncate jos_session table, drop and make new one.. nothing helped.

I enabled Error log, got this:

Profile Information

Application afterLoad: 0.000 seconds, 0.41 MB

Application afterInitialise: 0.035 seconds, 2.38 MB

Application afterRoute: 0.044 seconds, 3.09 MB

Application afterDispatch: 0.082 seconds, 5.21 MB

Application afterRender: 0.103 seconds, 5.80 MB

Memory Usage
6149416
11 queries logged

1.SELECT *
FROM jos_session
WHERE session_id = '33e41f575394f825449e88c2d0bc0b21'


2.DELETE
FROM jos_session
WHERE ( time < '1472684528' )


3.SELECT *
FROM jos_session
WHERE session_id = '33e41f575394f825449e88c2d0bc0b21'


4.INSERT INTO `jos_session` ( `session_id`,`time`,`username`,`gid`,`guest`,`client_id` )
VALUES ( '33e41f575394f825449e88c2d0bc0b21','1472685428','','0','1','0' )


Any suggestions?

[mjparadac]

Hello alsunna

Is everything suddenly occurred?
Does your hosting provider notified of any change?
I recommend that you try to optimize the tables in your database from phpmyadmin.

Hope this helps.
Regards,

[alsunna]

Yes.
I tried that did not help. Hostgator said it's nothing we can see or do except restore for a free.
I optimized and repaired table, all went OK but still no entry to back-end.


HTTP ERROR 500

[alsunna]

Could this be related to a bad theme?

I see server error log shows:
[Thu Sep 01 11:40:52 2016] [error] [client IP] File does not exist: /home3/SITE/public_html/templates/rt_chromatophore

[mjparadac]

Do you have any backup (files and database)?
Have you tried to restore? Malicious file may have been inside the template

[alsunna]

I could.. How about I migrate to 3.5? how can I use the migrate tool without backend?

[alsunna]

I replaced the template files, and now front end shows white screen!

[alsunna]

I've installed 3.5 fresh, how can I use previous DB

[alsunna]

How can I migrate the previous articles from previous DB to the new joomla 3.5?

[mjparadac]

Hello,

This article could help. It is about to upgrading versions
https://docs.joomla.org/Portal:Upgrading_Versions

J1.5 to J3
https://docs.joomla.org/Portal:Upgradin ... 1.5_to_3.x

Hope this helps,