Problem Server crashing on start

[Lousyclient]

I placed a tesseract providing power to a autonomous activator and my server crashed It would be great if someone could help me. This is the crash report. https://www.dropbox.com/s/msdee26e344xmhp/crash-2016-02-15_21.24.33-server.txt?dl=0

 

[mc.crab]

Remove this block with MCEdit:
Block location: World: (231,58,102)
Take a backup first.