Problem Server Crashing On Start

[Lucius9001]

I have just tried to start up my server for the first time in a few days, and it immediately crashed. I kept trying but the same crash kept happening. It was running fine a few days ago. Could anyone with some more knowledge let me know what the problem is?

The crash report is attached.

 

[adamich]

Is new world Ok?
Startup log is needed to see more information.

 

[Lucius9001]

Sorry, I'm new to this. Is the startup log just a copy of the server console?
Also, I don't want to start over as I've been playing on it for a while with my friend.

 

[Lucius9001]

here is the console on startup

Also, the issue is definitely not the world because on a new install of the server the world loads fine.

 

[grandrolf]

Is this Skyfactory 3?

If yes, find and remove the file islands.json (move it to another location and it will be recreated)

If you're using the 1st island then it's no issue, if you have created new islands with commands you might want to get a copy of the islands.json from a backup of your world.

If it's not Skyfactory 3 tell what pack it is.