It's not the first time that I click on "Help: General / Current Version" and get this message: An error occurred on the server when processing the URL. Please contact the system administrator.
It's a known error that shows up on this forum every now and then but no fix has been found for as far as I know. If it happens when you're trying to post a message, you should use the back button of your browser to return to the message editor and hit the send button again. Then your post will go through, otherwise you'll have to re-type the entire thing.
You will get that message for any number of problmes around here (It replaces the 500 error messages). These include, but are not limited to, timeouts which sometimes occur when the server load is heavy and an unknown little bug that has been pestering this forum for some time now.