CMS Made Simple Forums

Have you checked to see how much memory PHP has available to it?

You can see this by creating a php file with this line of code:

Is this a new install of CMSms?  What version?

I've search the forums and found a few references to this sort of error.  So far I haven't found a real solution.  Had it happen to me once while installing module, but it never showed back up.

I've only found some people have fixed it by reinstalling CMSms.

Are all of these sites on the same server?

Have you made those changes to all of those sites?

Was everything working, then you suddenly got the error?

If the error started after you made those changes and you made those changes to all of the sites and all of the sites are exhibiting the same behavior, I would first undo those changes.

If that doesn't fix the problem, then I would look at any changes that may have happened on the server.  Contact your host perhaps and see if they have changed anything.

Have you tried clearing the cache?

Clear the cache by logging into the Admin section.  Then go to Site Admin > Global Settings.  Click on Clear Cache.