When I try to edit or add a user in the User Manager I get a '500 - Internal server error'.
When I contacted my hosts they say 'The issue seems to be with the missing files or components'.
The hosts gave me a link to an error log (CGI errors log), but it said the error log is empty.
Could someone please tell me what these 'missing files or components' may be and how I might resovle the issue?