Posting bugg

[Jordy12345]

Hello,

Our forum: www.grinderscape.org
Vbulletin Version: 3.8.5
Problem: If we are trying to post on every single thread on our forums as a registered member, we are having a weird error. We also don't know how this bug has come. Because we didn't change anything on the forums. Well here is the error that we are having:

Request Timeout

This request takes too long to process, it is timed out by the server. If it should not be timed out, please contact administrator of this web site to increase 'Connection Timeout'.

Picture: http://content.screencast.com/users/...01-03_1248.png

This error came up on google chrome and on Internet Explorer there came up another error, so we simply don't know whats the problem.
I also find it weird that this problem only comes if you are a registered member and a shoutbox moderator. Me, a administrator of the forums are having no problems.
We are also getting the same error if we are using: Find Users by IP Address.

If you guys got any idea's on how to fix this problem please post on this thread.
Sorry if this thread isn't in the right section, but I didn't want to wait for the owner to come online (he also didn't know how to fix this)