OpenComputers Robots + Boxes + TPPI2 - Cauldron

Cauldron, Server-Side. Did not crash server or client, but got kicked for ISE.
No crash-report generated; this is the main server log

[............]
[21:09:50] [Server thread/WARN]: Failed to handle packet for /127.0.0.1:49902
java.lang.NullPointerException
	at li.cil.oc.server.network.Node$class.connect(Node.scala:38) ~[Node$class.class:?]
	at li.cil.oc.server.network.Network$ComponentConnectorBuilder$$anon$1.connect(Network.scala:618) ~[Network$ComponentConnectorBuilder$$anon$1.class:?]
	at li.cil.oc.server.network.Network$$anonfun$remap$1.apply(Network.scala:67) ~[Network$$anonfun$remap$1.class:?]
	at li.cil.oc.server.network.Network$$anonfun$remap$1.apply(Network.scala:67) ~[Network$$anonfun$remap$1.class:?]
	at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59) ~[ResizableArray$class.class:?]
	at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48) ~[ArrayBuffer.class:?]
	at li.cil.oc.server.network.Network.remap(Network.scala:67) ~[Network.class:?]
	at li.cil.oc.server.network.Node$class.load(Node.scala:71) ~[Node$class.class:?]
	at li.cil.oc.server.network.Network$ComponentConnectorBuilder$$anon$1.li$cil$oc$server$network$Component$$super$load(Network.scala:618) ~[Network$ComponentConnectorBuilder$$anon$1.class:?]
	at li.cil.oc.server.network.Component$class.load(Component.scala:122) ~[Component$class.class:?]
	at li.cil.oc.server.network.Network$ComponentConnectorBuilder$$anon$1.li$cil$oc$server$network$Connector$$super$load(Network.scala:618) ~[Network$ComponentConnectorBuilder$$anon$1.class:?]
	at li.cil.oc.server.network.Connector$class.load(Connector.scala:122) ~[Connector$class.class:?]
	at li.cil.oc.server.network.Network$ComponentConnectorBuilder$$anon$1.load(Network.scala:618) ~[Network$ComponentConnectorBuilder$$anon$1.class:?]
	at li.cil.oc.api.prefab.ManagedEnvironment.load(ManagedEnvironment.java:48) ~[ManagedEnvironment.class:?]
	at li.cil.oc.server.machine.Machine.load(Machine.scala:644) ~[Machine.class:?]
	at li.cil.oc.common.tileentity.traits.Computer$class.readFromNBTForServer(Computer.scala:144) ~[Computer$class.class:?]
	at li.cil.oc.common.tileentity.RobotProxy.readFromNBTForServer(RobotProxy.scala:135) ~[RobotProxy.class:?]
	at li.cil.oc.common.tileentity.traits.TileEntity$class.readFromNBT(TileEntity.scala:79) ~[TileEntity$class.class:?]
	at li.cil.oc.common.tileentity.RobotProxy.func_145839_a(RobotProxy.scala:24) ~[RobotProxy.class:?]
	at mekanism.common.block.BlockCardboardBox.func_149727_a(BlockCardboardBox.java:100) ~[BlockCardboardBox.class:?]
	at net.minecraft.server.management.ItemInWorldManager.func_73078_a(ItemInWorldManager.java:456) ~[mx.class:?]
	at net.minecraft.network.NetHandlerPlayServer.func_147346_a(NetHandlerPlayServer.java:875) ~[nh.class:?]
	at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:60) ~[jo.class:?]
	at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:9) ~[jo.class:?]
	at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:244) ~[ej.class:?]
	at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:173) [nc.class:?]
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:980) [MinecraftServer.class:?]
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:423) [lt.class:?]
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:798) [MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:658) [MinecraftServer.class:?]
	at java.lang.Thread.run(Thread.java:745) [?:1.7.0_75]
[21:09:50] [Server thread/INFO]: Hastwell lost connection: Internal server error
[............]