Too Much Unnecessary load on server
 

I have a site which dont even have that much traffic but still gets down often, its a linux server and just running one site on it and with 30-40 ppl on it site goes down, the problem is mostly with mysql server, when i tried contacting server techs they said my forum databse is creating that problem , what could b wrong with my vbuletin database thats creating this problem:confused: