Problem Server Crashes After World Is Loaded (Slow's Stream Pack)

[ReTr1]

Recently whenever I attempt to launch my server, the server crashes.
I've attached the crash report below, and I have no idea why it's crashing.
Thanks!

Link to the Crash Report: http://pastebin.com/hPA9J6PU

Here is what the server.jar reports:

---- Minecraft Crash Report ----
// Sorry

Time: 4/21/13 3:12 AM
Description: Ticking entity

java.lang.NoSuchMethodError: xolova.blued00r.divinerpg.entities.vethea.EntityDisk.h(DDD)V
at xolova.blued00r.divinerpg.entities.vethea.EntityDisk.j_(EntityDisk.java:51)
at yc.a(World.java:2293)
at in.a(WorldServer.java:647)
at yc.g(World.java:2255)
at yc.h(World.java:2109)
at in.h(WorldServer.java:516)
at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:680)
at ho.r(DedicatedServer.java:269)
at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:599)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:497)
at fy.run(SourceFile:849)

 

[Dingham]

Please put crash reports in via pastebin, so its in a readable format.

You should be able to get a location for the crashreport, just go delete the entity in the region file.

 

[ReTr1]

Thanks, how would I go about doing that? I see that the entity is in region (-1,0), but how would I delete it from the region file?