Stuck on Launching Server

I was casually playing the game and trying to kill The Klaus. I somehow manage to kill him I was trying to get Krampus Sack so I started to roll back. And then a loading screen showed up and game shut itself down. I restarted my computer and tried to launch my server again but it was stuck in the phase of ''Launching Server'' I waited a bit and somehow server launched. But my base was gone and the character itself makes the walking animation but it doesn't moves at all.

That was my first server that i worked so hard. Please help me.