No posts can be made on any of the forums, and no threads can be viewed. vBulletin error message appears saying "Database Error". Cause is quite unknown, but it has been a problem since around 5:30 PM GMT on 17th June. This is very serious as all use of the forums is now impossible.
Edit: With a little more testing... "Project Tools" still seems to work fine, as does the messaging system, including e-mail notification of messages. The Members List is visible, but not pages J and P. Some profiles are also inaccessible (well, my own is at least). The "find=lastposter" function on the main page doesn't work, even for posters whose profiles can be accessed through the Members List. "Currently Active Users", "View Forum Leaders" and "Calendar" all work. I can't access my own profile or UserCP. I can however access the Edit Profile and Signature pages, but trying to save changes to them results in the Database Error message. Same for the Edit Options page.