Help! Server not Loading.

I start my server, confirm it, and then it is stuck loading. I've tried 3-4 times now and it just goes back to offline. Please help me. I can't actually provide a log, either. It just is empty... I will post if deleting 2 worlds helped.

EDIT:

The deleting didn't help...

OK, so I FINALLY got command output, but my server was never done loading...

Is this a file issue? When I try to start, there's no sign of my files... However, my files are there when offline.