Good thing you posted something. I woke up this morning for my off-day and wanted to play. I went to look for the server in the Garry's Mod server listing and couldn't find it, so I did some digging. On the battlemetrics website I saw the server was full 17 hours ago. Although, nothing indicated why it went down. No announcements or nothing. I also noticed the sunrust wiki server was down too, but that may be because they just migrated it somewhere else. I haven't played in some time. Let me know if you find anything.

URL for the player activity stats : https://www.battlemetrics.com/servers/gmod/4333523?serverRank=7D&timePlayed=7D&playerCount=24H