Description: Ticking block entity

java.lang.NullPointerException: Ticking block entity
	at thaumcraft.common.tiles.TileMirror.func_70299_a(TileMirror.java:377)
	at WayofTime.alchemicalWizardry.common.spell.complex.effect.SpellHelper.insertStackIntoInventory(SpellHelper.java:559)
	at WayofTime.alchemicalWizardry.common.rituals.RitualEffectItemSuction.performEffect(RitualEffectItemSuction.java:79)
	at WayofTime.alchemicalWizardry.api.rituals.Rituals.performEffect(Rituals.java:255)
	at WayofTime.alchemicalWizardry.common.tileEntity.TEMasterStone.performRitual(TEMasterStone.java:378)
	at WayofTime.alchemicalWizardry.common.tileEntity.TEMasterStone.func_145845_h(TEMasterStone.java:373)
	at net.minecraft.world.World.func_72939_s(World.java:2583)
	at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:673)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:986)
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:432)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:841)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:693)
	at java.lang.Thread.run(Unknown Source)


A detailed walkthrough of the error, its code path and all known details is as follows:
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-- Head --
Stacktrace:
	at thaumcraft.common.tiles.TileMirror.func_70299_a(TileMirror.java:377)
	at WayofTime.alchemicalWizardry.common.spell.complex.effect.SpellHelper.insertStackIntoInventory(SpellHelper.java:559)
	at WayofTime.alchemicalWizardry.common.rituals.RitualEffectItemSuction.performEffect(RitualEffectItemSuction.java:79)
	at WayofTime.alchemicalWizardry.api.rituals.Rituals.performEffect(Rituals.java:255)
	at WayofTime.alchemicalWizardry.common.tileEntity.TEMasterStone.performRitual(TEMasterStone.java:378)
	at WayofTime.alchemicalWizardry.common.tileEntity.TEMasterStone.func_145845_h(TEMasterStone.java:373)

-- Block entity being ticked --
Details:
	Name: containerMasterStone // WayofTime.alchemicalWizardry.common.tileEntity.TEMasterStone
	Block type: ID #548 (tile.blockMasterStone // WayofTime.alchemicalWizardry.common.block.BlockMasterStone)
	Block data value: 0 / 0x0 / 0b0000
	Block location: World: (2472,56,-3401), Chunk: (at 8,3,7 in 154,-213; contains blocks 2464,0,-3408 to 2479,255,-3393), Region: (4,-7; contains chunks 128,-224 to 159,-193, blocks 2048,0,-3584 to 2559,255,-3073)
	Actual block type: ID #548 (tile.blockMasterStone // WayofTime.alchemicalWizardry.common.block.BlockMasterStone)
	Actual block data value: 0 / 0x0 / 0b0000