Ah crap, now a new problem came up. The server now slows down to a crawl before shutting down automatically.
Here's the new log, sorry if I need to start a new thread about this:
https://pastebin.com/tLthhhfE
Title says all, it was working yesterday but then the players started to lag and then nobody could connect. The next day the server won't even run, it just crashes on startup.
Debug.log = https://pastebin.com/Q2n4Rwzg