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java.lang.NullPointerException: Ticking block entity	at mcjty.rftools.playerprops.BuffProperties.addBuffToPlayer(BuffProperties.java:125)	at mcjty.rftools.blocks.environmental.modules.PotionEffectModule.processPlayers(PotionEffectModule.java:81)	at mcjty.rftools.blocks.environmental.modules.PotionEffectModule.tick(PotionEffectModule.java:55)	at mcjty.rftools.blocks.environmental.EnvironmentalControllerTileEntity.checkStateServer(EnvironmentalControllerTileEntity.java:317)	at mcjty.rftools.blocks.environmental.EnvironmentalControllerTileEntity.func_73660_a(EnvironmentalControllerTileEntity.java:286)	at net.minecraft.world.World.func_72939_s(World.java:1804)	at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:619)	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:709)	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:387)	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:613)	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471)	at java.lang.Thread.run(Unknown Source)