I get this sometimes when I try to reply to a thread and other times when I try to access a thread from the search engine.
Never saw it before.
Oops!
Something went wrong. You’re not sure what — was it you? Was it the website? What do you do now?

You’ve requested a page — either by typing a URL directly into the address bar or clicking on an out-of-date link and you’ve found yourself in the middle of cyberspace nowhere.



On active threads and not out of date as it suggests.