I have a portal that was working fine a user making changes changed something causing the error below when someone clicks on the Login button the only way I can get into some settings for the portal is to access another site as superuser and manage portals. I don't see any settings that may have been change do you have any ideas where to look.
404 - File or directory not found.
The resource you are looking for might have been removed, had its name changed, or is temporarily unavailable.