The FCF forum was down for some hours during the night.
This was due to a log file run-away that used all of the available disk space on the server.
The root cause is not yet known, but is not believed to be due to any recent changes to the server configuration. It could have been the result of some cyber attack on the site, or it could have been some random event that triggered the log file to be written excessively.
The forum is now believed to be running normally again.
Forum outage 26/05/2017 - now resolved
Moderator: myglaren