How busy is your forum, are you on shared hosting?
What are your web server, php and mysql timeout settings?
At which point do they get this error msg? Posting? Uploading avatar? Inserting attachment? Just browsing a thread?
They claim to constantly get this message posting every 5 seconds throughout the website.
I am moving to a dedicated server. I figure I'll get it switched over and see if the errors still pop up. I just find it hard to believe a site with only 90 members and only 15 to 20 online at the most would give the server any problems.
I was using cloudflare but it was causing errors with a couple mods so I stopped using them and changed the nameserver back to it's original one. Not sure if that could cause problems?