As said in the title, the server I'm running runs fine for a short time after starting, but then crashes shortly after being up within around 5-6 minutes of being up. Asking around someone said it has to do with something called a, "tick entity", but I'm not very knowledgeable on reading crashlogs so I can't quite tell what the issue is, myself but here's the latest crashlog: https://pastebin.com/Peh08kdP
Thank you in advance for your time, any help or suggestions on what to do is greatly appreciated!