Everything works fine in singleplayer but when I try to make a server it crashes during world generation, reading the crash report seems to be something about chunks? I tried using a world already created in singleplayer but didn't work.

logs: https://pastebin.com/t5DARiUm

 

Dawnera is a client-side-only mod and not working on a server

Thank you so much! I didn't know dawnera was a client mod, now the server works perfectly.