PHP 7.4 to 8.0 - "CMSPlugin::loadLanguage() cannot be called statically"

[Zachsayre]

I just update from php 7.4 to 8.0. tried to login to the admin area and I get this same error message.

0 Non-static method Joomla\CMS\Plugin\CMSPlugin::loadLanguage() cannot be called statically

Not running jsecure plugin

[toivo]

It looks like either Joomla or one of the third party extensions is not compatible with PHP 8.0.

More information is required. Write-enable the file configuration.php in the main Joomla folder and make the following temporary changes, then save the file:

Code: Select all

	public $debug = 1;	
        public $error_reporting = 'maximum';

Try to access the back end again and copy and paste the error message and the call stack here for advice. The messages will now identify the script where the error occurs.

Alternatively, use the cPanel provided by your host and change the version of PHP back to 7.4. Post the results from the Forum Post Assistant (FPA) by following the instructions at https://forumpostassistant.github.io/docs/ so that our volunteer experts can review the configuration and advise.