I am upgrading to Joomla 5.1.1 successfully for old sites . Everything seems to work but I then attempted to do some front end editing on one site but I am getting "500 Internal Server Error" when clicking on Frontend Editor:
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator at to inform them of the time this error occurred, and the actions you performed just before this error.
More information about this error may be available in the server error log.
Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.
This is after clicking on the Frontend Edit button which then goes to <mysite>.eu/enhome/about<site>/edit/2
Editing the page in Builder is fine but not Frontend.
I have done the usual "clear cache", check account & password upd2date etc etc etc but it seems independent of these issues. Very similar to previous problems with the spinning pizza wheel :(
What have I done wrong? What can I do to fix?
We wish you a joyous and blessed Eid ul Adha!
Thanks in advance