We've had an outage this morning that was caused by lack of disk-space, which was caused by site backups not being automatically deleted as they should - perhaps the lack of space has been causing issues before hand.
Johannes has now cleared some space, and I'll keep an eye on it and in the future delete backups manually if necessary.
if you get errors in the future, let me know exact time (include timezone ) and the I can check the discourse logs to see if there are any clues.
also it would be useful if you check to see if you have errors with axoloti.com (rather than forum), this will enable us to determine if its the forum software/web server or potentially host/networking issues.
as always, the more info we have the more likely we can identify the underlying issue.
(but as I said, I suspect it was most likely disk space issues.)