Somewhat related to:
http://www.silkroadforums.com/viewtopic.php?t=14113
Periodically each day, the server comes under instense load.
We beleive the problem is from googlebot.
TheHelper.net and SRF share a server with other sites. Both sites are being thoroughly crawled by google at the same time, and its killing the server.
Remember when google deep-crawls a site, it sends many many spiders to gather all the content. Maxing out our RAM and MySql connections.
Some steps are being taken (more ram , restricting search engines, some settings) to improve the problems.
Meanwhile, have patience.