crash on windmill formation

RR windmill crash

---- Minecraft Crash Report ----
// Why did you do that?

Time: 6/19/15 11:04 AM
Description: Ticking block entity

java.lang.ClassCastException: com.draco18s.ores.entities.TileEntityWindmill cannot be cast to com.draco18s.hardlib.api.interfaces.IMechanicalPowerUser
	at com.draco18s.ores.entities.TileEntityWindmill.func_145845_h(TileEntityWindmill.java:41)
	at net.minecraft.world.World.func_72939_s(World.java:1939)
	at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:489)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:636)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
	at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
	at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
	at com.draco18s.ores.entities.TileEntityWindmill.func_145845_h(TileEntityWindmill.java:41)

-- Block entity being ticked --
Details:
	Name: ores.windmill // com.draco18s.ores.entities.TileEntityWindmill
	Block type: ID #198 (tile.axle // com.draco18s.ores.block.BlockAxle)
	Block data value: 0 / 0x0 / 0b0000
	Block location: World: (-266,70,225), Chunk: (at 6,4,1 in -17,14; contains blocks -272,0,224 to -257,255,239), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Actual block type: ID #198 (tile.axle // com.draco18s.ores.block.BlockAxle)
	Actual block data value: 0 / 0x0 / 0b0000
Stacktrace:
	at net.minecraft.world.World.func_72939_s(World.java:1939)
	at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:489)

-- Affected level --
Details:
	Level name: New World
	All players: 1 total; [EntityPlayerMP['Qohelethh'/246, l='New World', x=-267.47, y=65.68, z=227.39]]
	Chunk stats: ServerChunkCache: 700 Drop: 0
	Level seed: -1095321844912881828
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: World: (-240,64,252), Chunk: (at 0,4,12 in -15,15; contains blocks -240,0,240 to -225,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 2019 game time, 1944 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 67919 (now: false), thunder time: 107517 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:636)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
	at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
	at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)

-- System Details --
Details:
	Minecraft Version: 1.7.10
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.8.0_31, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 698272248 bytes (665 MB) / 1126694912 bytes (1074 MB) up to 2505572352 bytes (2389 MB)
	JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xms512m -Xmx2688m
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1448 9 mods loaded, 9 mods active
	States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
	UCHIJAAAA	mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) 
	UCHIJAAAA	FML{7.10.99.99} [Forge Mod Loader] (forge-1.7.10-10.13.4.1448-1.7.10-universal.jar) 
	UCHIJAAAA	Forge{10.13.4.1448} [Minecraft Forge] (forge-1.7.10-10.13.4.1448-1.7.10-universal.jar) 
	UCHIJAAAA	CustomOreGen{1.2.18} [Custom Ore Generation] (CustomOreGen-1.7.10-1.2.18.jar) 
	UCHIJAAAA	HardLib{1.7.0a} [HardLib] (1.7.10-ReasonableRealism1.7.0b.jar) 
	UCHIJAAAA	HarderUnderground{1.7.0a} [HarderUnderground] (1.7.10-ReasonableRealism1.7.0b.jar) 
	UCHIJAAAA	ExpandedIndustry{1.7.0b} [ExpandedIndustry] (1.7.10-ReasonableRealism1.7.0b.jar) 
	UCHIJAAAA	HarderOres{1.7.0a} [HarderOres] (1.7.10-ReasonableRealism1.7.0b.jar) 
	UCHIJAAAA	HarderWildlife{1.7.0a} [HarderWildlife] (1.7.10-ReasonableRealism1.7.0b.jar) 
	GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Player Count: 1 / 8; [EntityPlayerMP['Qohelethh'/246, l='New World', x=-267.47, y=65.68, z=227.39]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Definitely; Client brand changed to 'fml,forge'