Well, for some reason this site is maxing out 2 gigs of ram at random times. Normally its around 240 meg. When the memory is maxed, it starts acting goofy. It will be totally fine, and then just spike. It sees this as an error, and restarts all the services which only takes a minute. I'm guessing you are getting these errors while its restarting. The site has maxed out the ram twice tonight, for no reason that I can tell. It happened 3 times yesterday. It seems to happen between 9-11 each night, but only during those times.