Problem With Modded Server. It keeps crashing. 1.12.2

https://mclo.gs/gjh0zVF

Crashes while making the map.

I didn't try. Let me open it again and send its log.

After the second time, the server started but it now has a lag that makes the game unplayable. Sorry for changing the topic but now I can't play it because lag. I responded late because I invited my friends to test it too. They have the lag too. Console is spamming "Can't keep up" messages and server kicks us and gives "Closed by force" error.

I don't know what can I write there to help you to understand the problem but here is my log if it makes any sense. https://mclo.gs/QIpJ3gk

Thanks for responding.