It seems that BanManager caused a Java crash of our server.
Unfortunatly a bit too much mumbo jumbo for me to fully understand. Does anybody else understand what happened?

Full Java Crash log: http://pastebin.com/R4HxmNws

[error occurred during error reporting (printing register info), id 0xb]
Stack: [0x00007f1eabeff000,0x00007f1eac000000], sp=0x00007f1eabffde60, free space=1019k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
v ~RuntimeStub::slow_subtype_check Runtime1 stub
j me.confuser.banmanager.storage.PlayerStorage$1.run()V+4
j org.bukkit.craftbukkit.v1_8_R2.scheduler.CraftTask.run()V+4
j org.bukkit.craftbukkit.v1_8_R2.scheduler.CraftAsyncTask.run()V+53
j java.util.concurrent.ThreadPoolExecutor.runWorker(Ljava/util/concurrent

This is most likely a hardware issue rather than anything BanManager has done.