wierd Crash

[Boomaholic]

I had a power outage about 30minutes ago. upon trying to restart my server I've started to get this Crash Report

 

[Zexmaxwell001]

I had a power outage about 30minutes ago. upon trying to restart my server I've started to get this Crash Report

I can tell you without looking at your crash report, that your world got corrupted. Revert to backup.