Another piece of log:
[18:50:14] [sEVERE]Received a TileEntityData packet for a location that did not have a TileEntity: (320, 21, 12) 1: 52, 0, 0
[18:50:23] [sEVERE]java.lang.ClassCastException: codechicken.wirelessredstone.redpower.TileRPReceiver cannot be cast to ee.TileEE
[18:50:23] [sEVERE]at EEProxy.handleTEPacket(EEProxy.java:161)
[18:50:23] [sEVERE]at ee.network.TileEntityPacket.execute(TileEntityPacket.java:57)
[18:50:23] [sEVERE]at ee.network.PacketHandler.onPacketData(PacketHandler.java:38)
[18:50:23] [sEVERE]at forge.MessageManager.dispatchIncomingMessage(MessageManager.java:432)
[18:50:23] [sEVERE]at adl.a(NetClientHandler.java:1246)
[18:50:23] [sEVERE]at ee.a(SourceFile:46)
[18:50:23] [sEVERE]at lg.b(NetworkManager.java:343)
[18:50:23] [sEVERE]at adl.b(NetClientHandler.java:68)
[18:50:23] [sEVERE]at je.c(SourceFile:50)
[18:50:23] [sEVERE]at net.minecraft.client.Minecraft.k(Minecraft.java:1867)
[18:50:23] [sEVERE]at net.minecraft.client.Minecraft.x(Minecraft.java:819)
[18:50:23] [sEVERE]at net.minecraft.client.Minecraft.run(Minecraft.java:747)
[18:50:23] [sEVERE]at java.lang.Thread.run(Unknown Source)