Minecraft version 1.12
CodeChicken Lib 1.12.2-3.2.3.358-universal
(Error occurred in modpack Project Ozone 3 with all it's mods.)

The error is thrown when connecting to world:
`
java.lang.IllegalArgumentException: Cannot use MultipartSPH on a client world
at codechicken.multipart.handler.MultipartSPH$$anonfun$getTileStream$1.apply(packethandlers.scala:111)
at codechicken.multipart.handler.MultipartSPH$$anonfun$getTileStream$1.apply(packethandlers.scala:109)
at scala.collection.mutable.MapLike$class.getOrElseUpdate(MapLike.scala:188)
at scala.collection.mutable.AbstractMap.getOrElseUpdate(Map.scala:80)
at codechicken.multipart.handler.MultipartSPH$.getTileStream(packethandlers.scala:109)
at codechicken.multipart.TileMultipart.getWriteStream(TileMultipart.scala:172)
at codechicken.multipart.TileMultipart.getWriteStream(TileMultipart.scala:170)
at codechicken.multipart.TMultiPart.getWriteStream(TMultiPart.scala:78)
at codechicken.translocators.part.TranslocatorPart.sendDescUpdate(TranslocatorPart.java:125)
at codechicken.translocators.part.TranslocatorPart.onNeighborChanged(TranslocatorPart.java:216)
at codechicken.multipart.TileMultipart$$anonfun$onNeighborBlockChange$1.apply(TileMultipart.scala:448)
at codechicken.multipart.TileMultipart$$anonfun$onNeighborBlockChange$1.apply(TileMultipart.scala:448)
at codechicken.multipart.TileMultipart.operate(TileMultipart.scala:135)
at codechicken.multipart.TileMultipart.onNeighborBlockChange(TileMultipart.scala:448)
at codechicken.multipart.BlockMultipart.func_189540_a(BlockMultipart.scala:223)
at net.minecraft.block.state.BlockStateContainer$StateImplementation.func_189546_a(BlockStateContainer.java:481)
at lumien.randomthings.tileentity.redstoneinterface.TileEntityAdvancedRedstoneInterface.notifyTargets(TileEntityAdvancedRedstoneInterface.java:163)
at lumien.randomthings.tileentity.redstoneinterface.TileEntityRedstoneInterface.updateRedstoneState(TileEntityRedstoneInterface.java:204)
at lumien.randomthings.tileentity.redstoneinterface.TileEntityRedstoneInterface.func_73660_a(TileEntityRedstoneInterface.java:62)
at com.zeitheron.hammercore.asm.McHooks.tickTile(McHooks.java:38)
at net.minecraft.world.World.func_72939_s(World.java:1838)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1847)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1098)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:398)
at net.minecraft.client.main.Main.main(SourceFile:123)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:196)
at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:231)
at org.multimc.EntryPoint.listen(EntryPoint.java:143)
at org.multimc.EntryPoint.main(EntryPoint.java:34)

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Thread: Client thread
Stacktrace:
at codechicken.multipart.handler.MultipartSPH$$anonfun$getTileStream$1.apply(packethandlers.scala:111)
at codechicken.multipart.handler.MultipartSPH$$anonfun$getTileStream$1.apply(packethandlers.scala:109)
at scala.collection.mutable.MapLike$class.getOrElseUpdate(MapLike.scala:188)
at scala.collection.mutable.AbstractMap.getOrElseUpdate(Map.scala:80)
at codechicken.multipart.handler.MultipartSPH$.getTileStream(packethandlers.scala:109)
at codechicken.multipart.TileMultipart.getWriteStream(TileMultipart.scala:172)
at codechicken.multipart.TileMultipart.getWriteStream(TileMultipart.scala:170)
at codechicken.multipart.TMultiPart.getWriteStream(TMultiPart.scala:78)
at codechicken.translocators.part.TranslocatorPart.sendDescUpdate(TranslocatorPart.java:125)
at codechicken.translocators.part.TranslocatorPart.onNeighborChanged(TranslocatorPart.java:216)
at codechicken.multipart.TileMultipart$$anonfun$onNeighborBlockChange$1.apply(TileMultipart.scala:448)
at codechicken.multipart.TileMultipart$$anonfun$onNeighborBlockChange$1.apply(TileMultipart.scala:448)
at codechicken.multipart.TileMultipart.operate(TileMultipart.scala:135)
at codechicken.multipart.TileMultipart.onNeighborBlockChange(TileMultipart.scala:448)
at codechicken.multipart.BlockMultipart.func_189540_a(BlockMultipart.scala:223)
at net.minecraft.block.state.BlockStateContainer$StateImplementation.func_189546_a(BlockStateContainer.java:481)
at lumien.randomthings.tileentity.redstoneinterface.TileEntityAdvancedRedstoneInterface.notifyTargets(TileEntityAdvancedRedstoneInterface.java:163)
at lumien.randomthings.tileentity.redstoneinterface.TileEntityRedstoneInterface.updateRedstoneState(TileEntityRedstoneInterface.java:204)
at lumien.randomthings.tileentity.redstoneinterface.TileEntityRedstoneInterface.func_73660_a(TileEntityRedstoneInterface.java:62)
at com.zeitheron.hammercore.asm.McHooks.tickTile(McHooks.java:38)

-- Block entity being ticked --
Details:
Name: randomthings:advancedredstoneinterface // lumien.randomthings.tileentity.redstoneinterface.TileEntityAdvancedRedstoneInterface
Block type: ID #1040 (tile.advancedRedstoneInterface // lumien.randomthings.block.redstoneinterface.BlockAdvancedRedstoneInterface // randomthings:advancedredstoneinterface)
Block data value: 0 / 0x0 / 0b0000
Block location: World: (351,125,-152), Chunk: (at 15,7,8 in 21,-10; contains blocks 336,0,-160 to 351,255,-145), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
Actual block type: ID #1040 (tile.advancedRedstoneInterface // lumien.randomthings.block.redstoneinterface.BlockAdvancedRedstoneInterface // randomthings:advancedredstoneinterface)
Actual block data value: 0 / 0x0 / 0b0000
Stacktrace:
at net.minecraft.world.World.func_72939_s(World.java:1838)
`
Error is repeatable in single player world. (After saving and opening the world client crashes.)
Advanced Redstone Interface is targeting an (air) block which has translocators.

This appears to be an issue with Translocators, however, Translocators on 1.12 is not supported anymore. I recommend not accelerating ticks of Translocators.