jimchen5209 says to OKTW Network
-- Head -- Thread: Client thread Stacktrace: at mcjty.rftools.blocks.powercell.PowerCellTileEntity.getNetwork(PowerCellTileEntity.java:156) at mcjty.rftools.blocks.powercell.PowerCellTileEntity.receiveEnergyMulti(PowerCellTileEntity.java:481) at mcjty.rftools.blocks.powercell.PowerCellTileEntity.receiveEnergyFacing(PowerCellTileEntity.java:470) at mcjty.rftools.blocks.powercell.PowerCellTileEntity$1.receiveEnergy(PowerCellTileEntity.java:731) at net.ndrei.teslacorelib.energy.systems.ForgeEnergySystem$ReverseWrapper.givePower(ForgeEnergySystem.kt:68) at net.ndrei.teslacorelib.tileentities.ElectricGenerator.protectedUpdate(ElectricGenerator.kt:201) at net.ndrei.teslacorelib.tileentities.ElectricTileEntity.innerUpdate(ElectricTileEntity.kt:118) at net.ndrei.teslacorelib.tileentities.SidedTileEntity.func_73660_a(SidedTileEntity.kt:984) -- Block entity being ticked -- Details: Name: industrialforegoing:petrified_fuel_generator_tile // com.buuz135.industrial.tile.generator.PetrifiedFuelGeneratorTile Block type: ID #3024 (tile.industrialforegoing.petrified_fuel_generator // com.buuz135.industrial.tile.block.PetrifiedFuelGeneratorBlock) Block data value: 3 / 0x3 / 0b0011 Block location: World: (-152,79,265), Chunk: (at 8,4,9 in -10,16; contains blocks -160,0,256 to -145,255,271), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511) Actual block type: ID #3024 (tile.industrialforegoing.petrified_fuel_generator // com.buuz135.industrial.tile.block.PetrifiedFuelGeneratorBlock) Actual block data value: 3 / 0x3 / 0b0011 Stacktrace: at net.minecraft.world.World.func_72939_s(World.java:1829)