My server crashes for no reason immediately after launching 1.7.9

https://mclo.gs/qbn6Blt

Quote from Powerful845tiger

It didn't crash according to the log

It really is, but the server stopped for no reason?!

Quote from Powerful845tiger

It didn't crash according to the log

It's very strange, before my server didn't have a port at all, only now it has appeared and the server has started. But then it turned off after 10 seconds?

Thank you, the problem was in ProtocolSupport, I thought that these files had nothing to do with it since there was no error, so I spent a lot of time. I apologize for asking this in this thread, but how do I remove the automatic generation of worlds world, nether, end. I have registered another world in .properties as the main one, and these worlds that I don't need are generated even after I have disabled the nezer in the settings, and in bukkit.yml end.