Server crash when applying redstone signal to master ritual stone (Well of Suffering.)

• BloodMagic: 1.11-2.1.7-76
• Minecraft: 1.11.2
• Forge: 1.11.2-13.20.0.2230

Crash Report:
---- Minecraft Crash Report ----

WARNING: coremods are present:
FMLPlugin (InventoryTweaks-1.62-dev-78.jar)
RebornCoreASM (RebornCore-1.11.2-2.13.5.42-universal.jar)
ChiselCorePlugin (Chisel-MC1.11.2-0.0.9.11.jar)
Contact their authors BEFORE contacting forge

// I bet Cylons wouldn't have this problem.

Time: 3/27/17 10:28 PM
Description: Ticking block entity

java.lang.NullPointerException: Ticking block entity
at WayofTime.bloodmagic.tile.TileMasterRitualStone.activateRitual(TileMasterRitualStone.java:182)
at WayofTime.bloodmagic.tile.TileMasterRitualStone.onUpdate(TileMasterRitualStone.java:73)
at WayofTime.bloodmagic.tile.base.TileTicking.func_73660_a(TileTicking.java:20)
at net.minecraft.world.World.func_72939_s(World.java:1801)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:621)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:720)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:384)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:624)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:482)
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 WayofTime.bloodmagic.tile.TileMasterRitualStone.activateRitual(TileMasterRitualStone.java:182)
at WayofTime.bloodmagic.tile.TileMasterRitualStone.onUpdate(TileMasterRitualStone.java:73)
at WayofTime.bloodmagic.tile.base.TileTicking.func_73660_a(TileTicking.java:20)

-- Block entity being ticked --
Details:
Name: bloodmagic:tilemasterritualstone // WayofTime.bloodmagic.tile.TileMasterRitualStone
Block type: ID #244 (tile.bloodmagic.stone.ritual. // WayofTime.bloodmagic.block.BlockRitualController)
Block data value: 0 / 0x0 / 0b0000
Block location: World: (-403,72,693), Chunk: (at 13,4,5 in -26,43; contains blocks -416,0,688 to -401,255,703), Region: (-1,1; contains chunks -32,32 to -1,63, blocks -512,0,512 to -1,255,1023)
Actual block type: ID #244 (tile.bloodmagic.stone.ritual. // WayofTime.bloodmagic.block.BlockRitualController)
Actual block data value: 0 / 0x0 / 0b0000
Stacktrace:
at net.minecraft.world.World.func_72939_s(World.java:1801)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:621)

-- Affected level --
Details:
Level name: SkyNet 1.11.2
All players: 1 total; [EntityPlayerMP['SyiSeiko'/49264, l='SkyNet 1.11.2', x=-403.22, y=72.00, z=695.30]]
Chunk stats: ServerChunkCache: 697 Drop: 0
Level seed: 1464410125436618492
Level generator: ID 00 - default, ver 1. Features enabled: true
Level generator options:
Level spawn location: World: (-74,64,284), Chunk: (at 6,4,12 in -5,17; contains blocks -80,0,272 to -65,255,287), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 229081367 game time, 1269471 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 110320 (now: false), thunder time: 16081 (now: false)
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:720)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:384)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:624)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:482)
at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
Minecraft Version: 1.11.2
Operating System: Linux (amd64) version 2.6.32-642.4.2.el6.x86_64
Java Version: 1.8.0_101, Oracle Corporation
Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 293758496 bytes (280 MB) / 774197248 bytes (738 MB) up to 6355222528 bytes (6060 MB)
JVM Flags: 4 total; -XX:MaxMetaspaceSize=256M -XX:+UseConcMarkSweepGC -Xmx6144M -Xms128M
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
FML: MCP 9.38 Powered by Forge 13.20.0.2230 54 mods loaded, 54 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAAAA minecraft{1.11.2} [Minecraft] (minecraft.jar)
UCHIJAAAA mcp{9.19} [Minecraft Coder Pack] (minecraft.jar)
UCHIJAAAA FML{8.0.99.99} [Forge Mod Loader] (forge-1.11.2-13.20.0.2230-universal.jar)
UCHIJAAAA forge{13.20.0.2230} [Minecraft Forge] (forge-1.11.2-13.20.0.2230-universal.jar)
UCHIJAAAA achunkloader{1.11-1.2.0} [A Chunk Loader] (achunkloader-1.11.2-1.2.0.jar)
UCHIJAAAA psi{r1.1-46} [Psi] (Psi-r1.1-46.jar)
UCHIJAAAA autoreglib{1.1-4} [AutoRegLib] (AutoRegLib-1.1-4.jar)
UCHIJAAAA gorecore{1.11-0.3.0} [GoreCore] (avatarmod-a3.0.jar)
UCHIJAAAA avatarmod{a3.0} [Avatar Mod: Out of the Iceberg] (avatarmod-a3.0.jar)
UCHIJAAAA baubles{1.4.3} [Baubles] (Baubles-1.11-1.4.3.jar)
UCHIJAAAA bdlib{1.13.2.7} [BD Lib] (bdlib-1.13.2.7-mc1.11.2.jar)
UCHIJAAAA guideapi{1.11-2.1.0-50} [Guide-API] (Guide-API-1.11-2.1.0-50.jar)
UCHIJAAAA bloodmagic{1.11-2.1.7-76} [Blood Magic: Alchemical Wizardry] (BloodMagic-1.11-2.1.7-76.jar)
UCHIJAAAA botania{r1.9-342} [Botania] (Botania r1.9-342.jar)
UCHIJAAAA chameleon{1.11-3.0.2} [Chameleon] (Chameleon-1.11-3.0.2.jar)
UCHIJAAAA chisel{MC1.11.2-0.0.9.11} [Chisel] (Chisel-MC1.11.2-0.0.9.11.jar)
UCHIJAAAA chiselsandbits{13.10} [Chisels & Bits] (chiselsandbits-13.10.jar)
UCHIJAAAA claybucket{1.1} [Clay Bucket] (ClayBucket-1.11-1.0.jar)
UCHIJAAAA cosmeticarmorreworked{1.11.2-v1a} [CosmeticArmorReworked] (CosmeticArmorReworked-1.11.2-v1a.jar)
UCHIJAAAA craftingtweaks{7.1.6} [Crafting Tweaks] (CraftingTweaks_1.11.2-7.1.6.jar)
UCHIJAAAA forestry{5.3.2.60} [Forestry] (forestry_1.11.2-5.3.2.60.jar)
UCHIJAAAA eleccore{1.7.409} [ElecCore] (ElecCore-1.11-1.7.409.jar)
UCHIJAAAA deepresonance{1.4.6} [DeepResonance] (deepresonance-1.1x-1.4.6.jar)
UCHIJAAAA storagedrawers{1.11.2-4.2.0} [Storage Drawers] (StorageDrawers-1.11.2-4.2.0.jar)
UCHIJAAAA bitdrawers{0.4} [Drawers & Bits] (DrawersBits-1.11.2-0.4.jar)
UCHIJAAAA elevatorid{1.3.0} [Elevator Mod] (ElevatorMod-1.11.2-1.3.0.jar)
UCHIJAAAA enderthing{0.7.3} [Enderthing] (enderthing-1.11.0-0.7.3.jar)
UCHIJAAAA extrautils2{1.0} [extrautils2] (extrautils2-1.11.2-1.3.3.jar)
UCHIJAAAA zerocore{1.11.2-0.1.0.4} [Zero CORE] (zerocore-1.11.2-0.1.0.4.jar)
UCHIJAAAA bigreactors{1.11.2-0.4.5.27} [Extreme Reactors] (ExtremeReactors-1.11.2-0.4.5.27.jar)
UCHIJAAAA gendustry{1.6.5.7} [GenDustry] (gendustry-1.6.5.7-mc1.11.2.jar)
UCHIJAAAA gravestone{1.7.2} [Gravestone] (GraveStone Mod 1.7.2.jar)
UCHIJAAAA waila{1.8.10} [Waila] (Hwyla-1.8.10-B23_1.11.jar)
UCHIJAAAA inventorytweaks{1.62-dev-78-e073cca} [Inventory Tweaks] (InventoryTweaks-1.62-dev-78.jar)
UCHIJAAAA ironchest{1.11.2-7.0.18.800} [Iron Chest] (ironchest-1.11.2-7.0.18.800.jar)
UCHIJAAAA jei{4.2.10.248} [Just Enough Items] (jei_1.11.2-4.2.10.248.jar)
UCHIJAAAA jeibees{0.9.0.5} [JEI Bees] (jeibees-0.9.0.5-mc1.11.2.jar)
UCHIJAAAA levels{r1.2.8} [Levels] (Levels 2-1.11.2-r1.2.8.jar)
UCHIJAAAA morpheus{1.11.2-3.2.13} [Morpheus] (Morpheus-1.11.2-3.2.13.jar)
UCHIJAAAA harvestcraft{1.11.2g} [Pam's HarvestCraft] (Pam's HarvestCraft 1.11.2g.jar)
UCHIJAAAA reborncore{2.13.5.42} [RebornCore] (RebornCore-1.11.2-2.13.5.42-universal.jar)
UCHIJAAAA quantumstorage{alpha3} [QuantumStorage] (QuantumStorage-1.11.2-alpha3.jar)
UCHIJAAAA reborncore-mcmultipart{2.13.5.42} [reborncore-MCMultiPart] (RebornCore-1.11.2-2.13.5.42-universal.jar)
UCHIJAAAA refinedstorage{1.4.1} [Refined Storage] (refinedstorage-1.4.1.jar)
UCHIJAAAA rftools{5.90} [RFTools] (rftools-1.1x-5.90.jar)
UCHIJAAAA rftoolscontrol{1.6.6} [RFTools Control] (rftoolsctrl-1.1x-1.6.6.jar)
UCHIJAAAA rftoolsdim{4.55} [RFTools Dimensions] (rftoolsdim-1.1x-4.55.jar)
UCHIJAAAA roots{0.014} [Roots 2] (roots-2-0.014.jar)
UCHIJAAAA spartanshields{1.2a} [Spartan Shields] (SpartanShields-1.11-1.2a.jar)
UCHIJAAAA tammodized{0.6.2} [TamModized] (TamModized-1.11.2-0.6.2.jar)
UCHIJAAAA villagermarket{1.0} [Villager Market] (villagermarket-0.2-HF.jar)
UCHIJAAAA voidcraft{0.17.8} [VoidCraft] (VoidCraft-1.11.2-0.17.8.jar)
UCHIJAAAA woot{1.11.2-0.1.1} [Woot] (woot-1.11.2-0.1.1.jar)
UCHIJAAAA xnet{1.1.2} [XNet] (xnet-1.1.2.jar)
Loaded coremods (and transformers):
FMLPlugin (InventoryTweaks-1.62-dev-78.jar)
invtweaks.forge.asm.ContainerTransformer
RebornCoreASM (RebornCore-1.11.2-2.13.5.42-universal.jar)
reborncore.mixin.transformer.MixinTransformer
ChiselCorePlugin (Chisel-MC1.11.2-0.0.9.11.jar)
team.chisel.common.asm.ChiselTransformer
List of loaded APIs:
* Baubles|API (1.4.0.2) from Baubles-1.11-1.4.3.jar
* bigreactors|API (4.0.1) from ExtremeReactors-1.11.2-0.4.5.27.jar
* bloodmagic|API (1.11-2.1.7-76) from BloodMagic-1.11-2.1.7-76.jar
* BotaniaAPI (86) from Botania r1.9-342.jar
* ChiselAPI (0.0.1) from Chisel-MC1.11.2-0.0.9.11.jar
* ChiselAPI|Carving (0.0.1) from Chisel-MC1.11.2-0.0.9.11.jar
* ChiselsAndBitsAPI (13.8.0) from chiselsandbits-13.10.jar
* CoFHAPI (1.8.9R1.2.0B1) from SpartanShields-1.11-1.2a.jar
* cofhapi (1.4.0) from extrautils2-1.11.2-1.3.3.jar
* CoFHAPI|block (1.8.9R1.2.0B1) from zerocore-1.11.2-0.1.0.4.jar
* CoFHAPI|core (1.8.9R1.2.0B1) from zerocore-1.11.2-0.1.0.4.jar
* CoFHAPI|energy (1.8.9R1.2.0B1) from mcjtylib-1.1x-2.3.11.jar
* cofhapi|energy (1.4.0) from extrautils2-1.11.2-1.3.3.jar
* CoFHAPI|inventory (1.8.9R1.2.0B1) from zerocore-1.11.2-0.1.0.4.jar
* CoFHAPI|item (1.8.9R1.2.0B1) from mcjtylib-1.1x-2.3.11.jar
* CoFHAPI|tileentity (1.8.9R1.2.0B1) from zerocore-1.11.2-0.1.0.4.jar
* CoFHAPI|transport (1.8.9R1.2.0B1) from zerocore-1.11.2-0.1.0.4.jar
* compatlayer (0.2.5) from compatlayer-1.11.2-0.2.5.jar
* CraftingTweaks|API (4.1) from CraftingTweaks_1.11.2-7.1.6.jar
* DR-API (1.0.4-Beta) from deepresonance-1.1x-1.4.6.jar
* ElecCoreAPI (1.0) from ElecCore-1.11-1.7.409.jar
* ElecCore|Abilities (#API_VER#) from ElecCore-1.11-1.7.409.jar
* ForestryAPI|apiculture (5.0.0) from forestry_1.11.2-5.3.2.60.jar
* ForestryAPI|arboriculture (4.2.1) from forestry_1.11.2-5.3.2.60.jar
* ForestryAPI|circuits (3.1.0) from forestry_1.11.2-5.3.2.60.jar
* ForestryAPI|climate (2.1.0) from forestry_1.11.2-5.3.2.60.jar
* ForestryAPI|core (5.1.0) from forestry_1.11.2-5.3.2.60.jar
* ForestryAPI|farming (2.1.0) from forestry_1.11.2-5.3.2.60.jar
* ForestryAPI|food (1.1.0) from forestry_1.11.2-5.3.2.60.jar
* ForestryAPI|fuels (3.0.0) from forestry_1.11.2-5.3.2.60.jar
* ForestryAPI|genetics (4.7.1) from forestry_1.11.2-5.3.2.60.jar
* ForestryAPI|greenhouse (5.2.0) from forestry_1.11.2-5.3.2.60.jar
* ForestryAPI|hives (4.1.0) from forestry_1.11.2-5.3.2.60.jar
* ForestryAPI|lepidopterology (1.3.0) from forestry_1.11.2-5.3.2.60.jar
* ForestryAPI|mail (3.1.0) from forestry_1.11.2-5.3.2.60.jar
* ForestryAPI|multiblock (3.0.0) from forestry_1.11.2-5.3.2.60.jar
* ForestryAPI|recipes (5.4.0) from forestry_1.11.2-5.3.2.60.jar
* ForestryAPI|storage (5.0.0) from forestry_1.11.2-5.3.2.60.jar
* ForestryAPI|world (2.1.0) from forestry_1.11.2-5.3.2.60.jar
* gendustryAPI (2.3.0) from gendustry-1.6.5.7-mc1.11.2.jar
* Guide-API|API (1.11-2.1.0-50) from Guide-API-1.11-2.1.0-50.jar
* jeresources|API (0.6.2.104) from JustEnoughResources-1.11.2-0.6.2.104.jar
* JustEnoughItemsAPI (4.11.0) from jei_1.11.2-4.2.10.248.jar
* mcjtylib_ng (2.3.11) from mcjtylib-1.1x-2.3.11.jar
* PsiAPI (4) from Psi-r1.1-46.jar
* reborncoreAPI (2.13.5.42) from RebornCore-1.11.2-2.13.5.42-universal.jar
* reborncoreAPI|Fuel (2.13.5.42) from RebornCore-1.11.2-2.13.5.42-universal.jar
* reborncoreAPI|Power (2.13.5.42) from RebornCore-1.11.2-2.13.5.42-universal.jar
* reborncoreAPI|Recipe (2.13.5.42) from RebornCore-1.11.2-2.13.5.42-universal.jar
* reborncoreAPI|Tile (2.13.5.42) from RebornCore-1.11.2-2.13.5.42-universal.jar
* StorageDrawersAPI (1.10.2-1.3.0) from StorageDrawers-1.11.2-4.2.0.jar
* StorageDrawersAPI|config (1.7.10-1.2.0) from refinedstorage-1.4.1.jar
* StorageDrawersAPI|event (1.10.2-1.3.0) from StorageDrawers-1.11.2-4.2.0.jar
* StorageDrawersAPI|pack (1.7.10-1.2.0) from refinedstorage-1.4.1.jar
* StorageDrawersAPI|registry (1.10.2-1.3.0) from StorageDrawers-1.11.2-4.2.0.jar
* StorageDrawersAPI|render (1.10.2-1.3.0) from StorageDrawers-1.11.2-4.2.0.jar
* StorageDrawersAPI|storage (1.10.2-1.3.0) from StorageDrawers-1.11.2-4.2.0.jar
* StorageDrawersAPI|storage-attribute (1.7.10-1.2.0) from refinedstorage-1.4.1.jar
* WailaAPI (1.3) from Hwyla-1.8.10-B23_1.11.jar
* zerocore|API|multiblock (1.10.2-0.0.2) from zerocore-1.11.2-0.1.0.4.jar
* zerocore|API|multiblock|rectangular (1.10.2-0.0.2) from zerocore-1.11.2-0.1.0.4.jar
* zerocore|API|multiblock|validation (1.10.2-0.0.2) from zerocore-1.11.2-0.1.0.4.jar
RebornCore:
Plugin Engine: 0
RebornCore Version: 2.13.5.42
Mixin Status: 1
Runtime Debofucsation 1
Profiler Position: N/A (disabled)
Player Count: 1 / 100; [EntityPlayerMP['SyiSeiko'/49264, l='SkyNet 1.11.2', x=-403.22, y=72.00, z=695.30]]
Is Modded: Definitely; Server brand changed to 'fml,forge'
Type: Dedicated Server (map_server.txt)

Caused by 7c8e9b6. I forgot the old method null-checked the player.