Hello JoomlArt Support,
I have downloaded the latest JA Mega Filter package from my member area and tried to install the J2Store integration plugin on a clean Joomla 4 + PHP 8 website.
However, the installation fails with the following fatal error:
0 Call to undefined method Joomla\CMS\Installer\Adapter\PluginAdapter::get()
After installing, I also get this additional error:
0 Failed opening required '/www/doc/test.bzoomer.online/www/administrator/components/com_categories/models/category.php' (include_path='.:/usr/share/php')
Could you please check whether the J2Store integration plugin is expected to work on Joomla 4, and if so, provide guidance on how to resolve this installation issue?