Windows .jar Holding Track + Energy Unloader = server crash?

[wildex999]

Hello,
I'm running a private FTB server where me and a few others play on. Lately I started playing with rails and was trying to set up energy transfer by carts. I set up an Energy Unloader and a Holding track, just to test it i built a batbox cart and pushed it onto the holding track... and the server crashed.

Error message:
java.lang.NoSuchMethodError: railcraft.common.blocks.tracks.TrackBoarding.sendUpdateToClient()V
at railcraft.common.blocks.tracks.TrackBoarding.updateEntity(TrackBoarding.java:54)
at railcraft.common.blocks.tracks.TileTrack.g(TileTrack.java:78)
at yc.h(World.java:2153)
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)

I'm running MindCrack 8.2, and I couldn't find any other topic with this error(Tho I found 3 pastebins with this error pasted).

This happens always as long as the Energy Unloader is plased towards the track, the track in front of it is either a holding or boarding track, and with any cart we have tried so far(both with battery and without). It always crashed at the point the cart comes in front of the energy unloader. At this point the server will not start up again btw, needed to go to a backup.


I was hoping that some one might know how to fix this? Am I just overlooking something obvious?

 

[Ashzification]

You should post your entire log to pastebin.com and link it. But you'll probably get better responses/help by posting in the server tech section