Host Server Terminate Problem

[cedar girder]

Im trying to host a build 42 server for me and my buddy and invite him through steam but everytime i start the server it terminates it. I have a 100 modpack from youtube meant for build 42.15. Any help would be great

[wise venture]

Does the issue happen without any mods?

[fast creek]

i have the same isue and for me without mods