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via Stack Overflow by Chetan
, 1 year ago
java.lang.IllegalMonitorStateException at java.lang.Object.notifyAll(Native Method) at blusunrize.immersiveengineering.common.blocks.metal.TileEntityFloodlight.func_73660_a( at at at net.minecraft.server.MinecraftServer.func_71190_q( at net.minecraft.server.dedicated.DedicatedServer.func_71190_q( at net.minecraft.server.MinecraftServer.func_71217_p( at at Source)