Mekanism again..

19.05 18:30:29 [Server] SEVERE ---- Minecraft Crash Report ----
19.05 18:30:29 [Server] INFO // Hey, that tickles! Hehehe!
19.05 18:30:29 [Server] INFO Time: 5/19/16 6:30 PM
19.05 18:30:29 [Server] INFO Description: Exception while updating neighbours
19.05 18:30:29 [Server] INFO java.lang.ClassCastException: mekanism.common.TileEntityMechanicalPipe cannot be cast to mekanism.common.TileEntityDynamicTank
19.05 18:30:29 [Server] INFO at mekanism.common.MekanismUtils.pullInventory(MekanismUtils.java:780)
19.05 18:30:29 [Server] INFO at mekanism.common.TankUpdateProtocol.updateTanks(TankUpdateProtocol.java:392)
19.05 18:30:29 [Server] INFO at mekanism.common.TileEntityDynamicTank.update(TileEntityDynamicTank.java:71)
19.05 18:30:29 [Server] INFO at mekanism.common.BlockBasic.func_71863_a(BlockBasic.java:69)
19.05 18:30:29 [Server] INFO at net.minecraft.world.World.func_72821_m(World.java:1128)
19.05 18:30:29 [Server] INFO at net.minecraft.world.World.func_72898_h(World.java:1056)
19.05 18:30:29 [Server] INFO at mffs.event.BlockNotifyDelayedEvent.onEvent(BlockNotifyDelayedEvent.java:35)
19.05 18:30:29 [Server] INFO at mffs.DelayedEvent.update(DelayedEvent.java:22)
19.05 18:30:29 [Server] INFO at mffs.tileentity.TileEntityFieldInteraction.func_70316_g(TileEntityFieldInteraction.java:52)
19.05 18:30:29 [Server] INFO at mffs.tileentity.TileEntityForceManipulator.func_70316_g(TileEntityForceManipulator.java:48)
19.05 18:30:29 [Server] INFO at net.minecraft.world.World.func_72939_s(World.java:2368)
19.05 18:30:29 [Server] INFO at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:806)
19.05 18:30:29 [Server] INFO at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:838)
19.05 18:30:29 [Server] INFO at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:320)
19.05 18:30:29 [Server] INFO at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:732)
19.05 18:30:29 [Server] INFO at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:614)
19.05 18:30:29 [Server] INFO at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
19.05 18:30:29 [Server] INFO A detailed walkthrough of the error, its code path and all known details is as follows:
19.05 18:30:29 [Server] INFO ---------------------------------------------------------------------------------------
19.05 18:30:29 [Server] INFO -- Head --
19.05 18:30:32 [Multicraft] Skipped 126 lines due to rate limit (30/s)
19.05 18:30:38 [Server] WARNING The main thread failed to respond after 10 seconds
19.05 18:30:38 [Server] WARNING What follows is the stack trace of the main thread
19.05 18:30:38 [Server] WARNING at java.lang.Thread.sleep(Native Method)
19.05 18:30:38 [Server] WARNING at net.minecraft.server.dedicated.DedicatedServer.func_71228_a(DedicatedServer.java:290)
19.05 18:30:38 [Server] WARNING at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:658)
19.05 18:30:38 [Server] WARNING at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
19.05 18:30:51 [Server] WARNING The main thread is still stuck, current loop line is:
19.05 18:30:51 [Server] WARNING at net.minecraft.server.dedicated.DedicatedServer.func_71228_a(DedicatedServer.java:290)
19.05 18:31:01 [Server] INFO FACTION|Fouright: languag
19.05 18:31:14 [Server] INFO Read timed out
19.05 18:31:33 [Server] SEVERE The server has stopped responding!
19.05 18:31:33 [Server] SEVERE Please report this to http://www.mcportcentral.co.za/
19.05 18:31:33 [Server] SEVERE Be sure to include ALL relevant console errors and Minecraft crash reports
19.05 18:31:33 [Server] SEVERE MCPC+ version: git-MCPC-Plus-jenkins-MCPC-Plus-Legacy-653 (MC: 1.5.2)
19.05 18:31:33 [Server] SEVERE ------------------------------
19.05 18:31:33 [Server] SEVERE Server thread dump (Look for plugins here before reporting to MCPC+!):
19.05 18:31:33 [Server] SEVERE ------------------------------
19.05 18:31:33 [Server] SEVERE Current Thread: Server thread
19.05 18:31:33 [Server] SEVERE PID: 13 | Suspended: false | Native: false | State: TIMED_WAITING
19.05 18:31:33 [Server] SEVERE Stack:
19.05 18:31:33 [Server] SEVERE java.lang.Thread.sleep(Native Method)