CMS Made Simple Forums

Actually there are some core modules missing in that list. I bet there is an old module breaking both front-end and back-end, since the list is too short. I would venture peeking admin log to see if there is any hint about errors. Also the server php logs may have errors. If all that fails to give a hint you could try CMSMS debug mode and see if some error appears at some point.
HTH

PS: I'm not sure since which version FEU is dependent on CGExtensions, but you may have to search for missing dependencies on your modules before upgrading....

Thanks for responses.

There are 11 pages under Content > Pages.

Fred

I'll add that I can see from responses so far, this is above our skill level already. The site was orignally set up by a third party, and obviously, untouched since then We intend to hire someone that knows CMSMS to repair it.