I did a migration from joomla 3x to 4x with a backup installation in the /mm4 folder there it looks good and everything works ok, but when I copy that installation to the root folder of my domain the Ja Coach template does not work anymore and I get a code:
0 - Class 'MatthiasMullie\Minify\Minify' not found.
I already deactivated all the modules and plugins, the problem is the templet, but I don't want to uninstall it because I added many module positions in my redesign...
What can I do?