You're not the first to have this problem. Sounds like your server was upgraded to PHP 5.3.x. The short answer is that the dev. team is working on it:
1.7 Coming and Repository Changes
When I can't find what I'm looking for using the forum search facility, I usually fallback to a google search of the forum site. For example, you might try the following google search terms to find forum topics related to PHP 5.3:dantan wrote: ...I did search here on this forum topics related to this issue but did not find anything....
site:forum.cmsmadesimple.org "PHP 5.3"
Hope this helps,
Fred P.
