Hi there, I have a problem trying to edit a fairly new theme ... When going back to my theme to edit it (after a backup), I get a message "Sorry, an error has occured. Please contact the Customer...

Hello, Normal solution is: https://answers.themler.io/questions/209432/sorry-an-error-has-occurred-please-clear-your-browser-cache But Themler Desktop version is Joomla 3 in my opinion. I now have a...