I just got the same (or very similar) response when trying to open threads on "Active Threads". I was going to report it and when I went to Active Threads again to copy the message, I got through to the thread without getting the message again, even though it had happened a couple of times previously.
I was getting a similar error message (didn't think to copy and paste it) when I tried opening a thread. Happened 4 or 5 times, then the thread opened. When I went back to Active Threads and tried another thread, I got the same thing, error 4 or 5 times, then opened. Each time I got the error I used the "go back one page" arrow on the browser page to reset. Using Firefox.
