Sorry guys. The problem was solved by a server restart. I had uploaded the default config.json file from the public Github (https://github.com/AndrewBelt/hack.

Sorry guys. The problem was solved by a server restart. I had uploaded the default config.json file from the public Github (https://github.com/AndrewBelt/hack.chat/blob/master/config.json https://github.com/AndrewBelt/hack.chat/blob/master/config.j...), realized my error and changed it, but forgot to restart the server. Regardless of how modern your encryption is, human error will always "fix" that.