Industrial Foregoing Version: 1.12.2-1.12.2
TeslaCoreLib Version: 1.0.15
Java Version: 1.8.0_51 64Bits
Crashlog:
`---- Minecraft Crash Report ----

WARNING: coremods are present:
MalisisCorePlugin (malisiscore-1.12.2-6.4.0.jar)
MicdoodlePlugin (MicdoodleCore-1.12.2-4.0.1.177.jar)
EnderCorePlugin (EnderCore-1.12.2-0.5.35.jar)
ForgelinPlugin (Forgelin-1.7.4.jar)
CTMCorePlugin (CTM-MC1.12.2-0.3.2.18.jar)
OpenModsCorePlugin (OpenModsLib-1.12.2-0.11.5.jar)
LoadingPlugin (ResourceLoader-MC1.12.1-1.5.3.jar)
Do not report to Forge! Remove FoamFixAPI (or replace with FoamFixAPI-Lawful) and try again. (foamfix-0.9.9.1-1.12.2-anarchy.jar)
TransformerLoader (OpenComputers-MC1.12.2-1.7.2.67.jar)
LoadingPlugin (RandomThings-MC1.12.2-4.1.9.jar)
IELoadingPlugin (ImmersiveEngineering-core-0.12-84.jar)
Contact their authors BEFORE contacting forge

// There are four lights!

Time: 7/23/18 2:13 AM
Description: Ticking block entity

java.lang.NullPointerException: Ticking block entity
at net.minecraft.entity.player.EntityPlayerMP.func_71110_a(EntityPlayerMP.java:989)
at net.minecraft.entity.player.EntityPlayerMP.func_71120_a(EntityPlayerMP.java:984)
at com.pixelmonmod.pixelmon.entities.pixelmon.drops.DropItemHelper.giveItemStackToPlayer(DropItemHelper.java:144)
at com.pixelmonmod.pixelmon.entities.pixelmon.drops.DropItemHelper.giveItemStackToPlayer(DropItemHelper.java:103)
at com.pixelmonmod.pixelmon.entities.pixelmon.drops.DropItemHelper.giveItemStackToPlayer(DropItemHelper.java:85)
at com.pixelmonmod.pixelmon.entities.pixelmon.drops.DropItemHelper.giveItemStackToPlayer(DropItemHelper.java:57)
at com.pixelmonmod.pixelmon.blocks.apricornTrees.BlockApricornTree.func_180639_a(BlockApricornTree.java:233)
at com.buuz135.industrial.tile.agriculture.PlantInteractorTile.work(PlantInteractorTile.java:71)
at com.buuz135.industrial.tile.WorkingAreaElectricMachine.performWork(WorkingAreaElectricMachine.java:91)
at net.ndrei.teslacorelib.tileentities.ElectricMachine.protectedUpdate(ElectricMachine.kt:280)
at com.buuz135.industrial.tile.CustomElectricMachine.protectedUpdate(CustomElectricMachine.java:98)
at net.ndrei.teslacorelib.tileentities.ElectricTileEntity.innerUpdate(ElectricTileEntity.kt:118)
at net.ndrei.teslacorelib.tileentities.SidedTileEntity.func_73660_a(SidedTileEntity.kt:991)
at net.minecraft.world.World.func_72939_s(World.java:1832)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:613)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:767)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:185)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
at java.lang.Thread.run(Thread.java:745)

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

-- Head --
Thread: Server thread
Stacktrace:
at net.minecraft.entity.player.EntityPlayerMP.func_71110_a(EntityPlayerMP.java:989)
at net.minecraft.entity.player.EntityPlayerMP.func_71120_a(EntityPlayerMP.java:984)
at com.pixelmonmod.pixelmon.entities.pixelmon.drops.DropItemHelper.giveItemStackToPlayer(DropItemHelper.java:144)
at com.pixelmonmod.pixelmon.entities.pixelmon.drops.DropItemHelper.giveItemStackToPlayer(DropItemHelper.java:103)
at com.pixelmonmod.pixelmon.entities.pixelmon.drops.DropItemHelper.giveItemStackToPlayer(DropItemHelper.java:85)
at com.pixelmonmod.pixelmon.entities.pixelmon.drops.DropItemHelper.giveItemStackToPlayer(DropItemHelper.java:57)
at com.pixelmonmod.pixelmon.blocks.apricornTrees.BlockApricornTree.func_180639_a(BlockApricornTree.java:233)
at com.buuz135.industrial.tile.agriculture.PlantInteractorTile.work(PlantInteractorTile.java:71)
at com.buuz135.industrial.tile.WorkingAreaElectricMachine.performWork(WorkingAreaElectricMachine.java:91)
at net.ndrei.teslacorelib.tileentities.ElectricMachine.protectedUpdate(ElectricMachine.kt:280)
at com.buuz135.industrial.tile.CustomElectricMachine.protectedUpdate(CustomElectricMachine.java:98)
at net.ndrei.teslacorelib.tileentities.ElectricTileEntity.innerUpdate(ElectricTileEntity.kt:118)
at net.ndrei.teslacorelib.tileentities.SidedTileEntity.func_73660_a(SidedTileEntity.kt:991)

-- Block entity being ticked --
Details:
Name: industrialforegoing:plant_interactor_tile // com.buuz135.industrial.tile.agriculture.PlantInteractorTile
Block type: ID #2310 (tile.industrialforegoing.plant_interactor // com.buuz135.industrial.tile.block.PlantInteractorBlock)
Block data value: 2 / 0x2 / 0b0010
Block location: World: (-2,71,192), Chunk: (at 14,4,0 in -1,12; contains blocks -16,0,192 to -1,255,207), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Actual block type: ID #2310 (tile.industrialforegoing.plant_interactor // com.buuz135.industrial.tile.block.PlantInteractorBlock)
Actual block data value: 2 / 0x2 / 0b0010
Stacktrace:
at net.minecraft.world.World.func_72939_s(World.java:1832)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:613)

-- Affected level --
Details:
Level name: New World
All players: 1 total; [GCEntityPlayerMP['Whathefrench'/228, l='New World', x=-3.38, y=71.00, z=193.26]]
Chunk stats: ServerChunkCache: 441 Drop: 0
Level seed: -939532616833845192
Level generator: ID 00 - default, ver 1. Features enabled: true
Level generator options:
Level spawn location: World: (0,64,192), Chunk: (at 0,4,0 in 0,12; contains blocks 0,0,192 to 15,255,207), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 73646 game time, 73646 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 92970 (now: false), thunder time: 89046 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:767)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:185)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
at java.lang.Thread.run(Thread.java:745)

I talked to the Pixelmon devs and they seem to be implementing a fix in version 7.0.0 that looks for a fake player

Thats on pixelmon side.