I can not access some option in back end (administrator) in Joomla in "article Manager" "Category Manager" and also the "Global Configuration".
Each time I'm clicking on "New Article" or to any "excisting article" or to a "category" or to the "Global Configuration" button the page just loading and loading until "500- Internal Server Error appears as an error message" and also "Internal Server Error - The server encountered an internal error or misconfiguration and was unable to complete your request. - Please contact the server administrator to inform of the time the error occurred and of anything you might have done that may have caused the error. - More information about this error may be available in the server error log."
Everything else works fine!
Budget is €30,00
Need fix in 2 day max.
Thanks in advance,