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java.lang.NullPointerException: Ticking entity	at mca.ai.AIWorkday.onUpdateServer(AIWorkday.java:62)	at mca.ai.AIManager.onUpdate(AIManager.java:45)	at mca.entity.EntityHuman.func_70071_h_(EntityHuman.java:375)	at net.minecraft.world.World.func_72866_a(World.java:1951)	at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:837)	at net.minecraft.world.World.func_72870_g(World.java:1920)	at net.minecraft.world.World.func_72939_s(World.java:1743)	at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:618)	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:707)	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:611)	at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:148)	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:469)	at java.lang.Thread.run(Thread.java:745)