We've got a website that uses EE 1.6.8 (I know very old and soon to be replaced).
The front end website works fine with no issues at all, which is great. The issue that I've got is when I login to the CMS and try to edit certain pages it gives an error 500. This happens on about half the pages if I try and go into them, however the other half work fine without issue.
Nothing has changed from my side of it so I suspect there was some change on the shared hosting platform (Fast Hosts) but I can't get anywhere with my hosting company.
I don't dare change anything too drastic because the live website is working fine, so I don't want to risk this going down or I would have a serious problem on my hands.
Any ideas of what I can check as it's really frustrating.
TIA P.S I'm a total newbie to EE and have no experience with it apart from the CMS.