Hi

When we upgrade to version 5, an error is given, and this issue can only be seen for Joomlart templates.

Joomla upgraded from 4.4.2 to 5.0.2
this problem is all joomlart templates + t4

Whats Problem and how can fix it?

HTTP 500 Whoops, looks like something went wrong.
Joomla\CMS\Event\Module\ModuleListEvent::onSetModules(): Argument #1 ($value) must be of type array, null given, called in /home/USERNAME/public_html/libraries/src/Event/AbstractEvent.php on line 225

Best Regards
Mahdi

Hi Mahdi,

I tried to access backend of your site but this issue appears:

You should reach out to your hosting provider for help to check the system requirements first.

Hi

Could I take a backup of your site and debug in my local environment?

Hi

Of course
But didn't you install the Akeeba Backup?
Also the FFExplore ?

I have sent you full access and you can do whatever you think is right. This is a separate backup of the main site, and you can even make any changes easily and safely in this address.

As far as I understand, the problem is not with the files, because I installed the same extensions on version 4 and upgraded them and there was no problem, but as soon as we connect the site database to the newly installed Joomla files, the same errors are displayed.

    I fully understand that you are busy, but I wanted to know what stage you are at and will this problem be solved?

      alirezamehrabun Hi

      The error seems come from the memcached cache handler on your site.

      I just edited this file public_html/configuration.php and change to file instead of memcached and your site is working again.

      public $cache_handler = 'file';
public $cache_platformprefix = false;

      Kindly reach out to your hosting provider for further investigation on this.

      Regards

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