anita

Hello,

The child theme was set as a complete copy of an older version of the original theme and was no longer compatible, so it was the “just” wrong setup.

Dear support,

after setting up the staging system, we found the error in the child theme.

Thanks for your time ??

Hi, thanks for checkin.

It’s the PHP 7.4 Version.

The error comes when opening the dashboard and selecting menu items such as “design” or “forms”. No errors are displayed in the frontend.

Sorry I can’t share the customer website. We could still set up a staging system via infiniteWP if you need that.