Server keeps crashing

[NCShaffer]

Ok, i keep getting this error on my server within 2 minutes of restarting it and it crashes it! Its pissing me off to no end. How do i fix it!?!?!?!

2012-11-16 03:01:47 [iNFO] Reached end of stream

2012-11-16 03:01:22 [iNFO] Reached end of stream

    at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:457)

    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:559)

    at net.minecraft.server.World.tickEntities(World.java:1189)

    at buildcraft.energy.TileEngine.q_(TileEngine.java:126)

java.lang.NoSuchMethodError: buildcraft.api.PowerProvider.receiveEnergy(I)V

2012-11-16 03:00:44 [sEVERE] Unexpected exception

2012-11-16 03:00:44 [sEVERE]    at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

2012-11-16 03:00:44 [sEVERE]    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:457)

2012-11-16 03:00:44 [sEVERE]    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:559)

2012-11-16 03:00:44 [sEVERE]    at net.minecraft.server.World.tickEntities(World.java:1189)

2012-11-16 03:00:44 [sEVERE]    at buildcraft.energy.TileEngine.q_(TileEngine.java:126)

2012-11-16 03:00:44 [sEVERE] java.lang.NoSuchMethodError: buildcraft.api.PowerProvider.receiveEnergy(I)V