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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:361)	at net.minecraft.world.World.func_72866_a(World.java:1860)	at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:699)	at net.minecraft.world.World.func_72870_g(World.java:1829)	at net.minecraft.world.World.func_72939_s(World.java:1661)	at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:544)	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:701)	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:344)	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:605)	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:481)	at java.lang.Thread.run(Unknown Source)