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java.lang.ClassCastException: net.minecraft.item.ItemStack cannot be cast to java.lang.Short
java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to [B	at io.netty.buffer.PooledHeapByteBuf._setLong(	at io.netty.buffer.AbstractByteBuf.writeLong(	at	at	at io.netty.handler.codec.MessageToMessageEncoder.write(	at	at	at	at io.netty.handler.timeout.IdleStateHandler.write(	at	at$1900(	at$AbstractWriteTask.write(	at$WriteAndFlushTask.write(	at$	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(	at	at io.netty.util.concurrent.SingleThreadEventExecutor$	at