kenko19

I pre-made a world, I've been working on it today and I got it to work but now when either me or my friends join I get a bunch of errors and it kicks us.

I'm trying to make a custom mod pack for my friends and I, I got the mod pack it self working but when i load up the server it crashes. here is the crash report crash-2017-08-22_14.50.23-server.txt If you can help or need more information please tell me. thank you