Newly booted server crash

Hello! Just installed to my rpi using raspbian, followed a guide that wanted me to use java 8, had trouble with the memory allocations, so used java 7 instead. Installed two plugins (clearlagg and nospawnchunks) tested the server for a few minutes and it crashed before dawn.

Crash report:

http://pastebin.com/ZES7c3aD

wassup?