[snakes1100]

Originally Posted by Wolver2

sadly it is shared hosting.. wished I could see logs somewhere..

Then you need to talk to your host, as only they can tell you why, but as it being on a shared server, extra's you've added to the site, ie vbseo, thank hacks & such, this will most likely as well as traffic put you over limits your host most likely put in place so your forum based site doesnt use up all the server resources, as you probably share a over sold server.

My guess as to your host & your questions about SQL will be:

Them saying you need a VPS.