Minecraft keeps crashing! Error Report Included

And I have a mod that dont show up whitch is two classes that let me x-ray. Where you can download with the link below.
https://mega.co.nz/#!2NxXxDTC!AUhpJ3aj6SBfDBOHUUIfVyH11x4XFWWgPdbMuF-2cWM

---- Minecraft Crash Report ----
// Everything's going to plan. No, really, that was supposed to happen.

Time: 1/12/14 11:13 AM
Description: Exception in server tick loop

java.lang.NoSuchMethodError: net.minecraft.block.Block.getExpDrop(Lnet/minecraft/world/World;II)I
at net.minecraftforge.event.world.BlockEvent$BreakEvent.<init>(BlockEvent.java:84)
at net.minecraftforge.common.ForgeHooks.onBlockBreakEvent(ForgeHooks.java:477)
at net.minecraft.item.ItemInWorldManager.func_73084_b(ItemInWorldManager.java:292)
at net.minecraft.item.ItemInWorldManager.func_73082_a(ItemInWorldManager.java:240)
at net.minecraft.network.NetServerHandler.func_72510_a(NetServerHandler.java:502)
at net.minecraft.network.packet.Packet14BlockDig.func_73279_a(SourceFile:46)
at net.minecraft.network.MemoryConnection.func_74428_b(MemoryConnection.java:89)
at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.java:141)
at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenThread.java:54)
at net.minecraft.server.integrated.IntegratedServerListenThread.func_71747_b(IntegratedServerListenThread.java:109)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:691)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:587)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:175)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:484)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)


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

-- System Details --
Details:
Minecraft Version: 1.6.4
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_45, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 281441184 bytes (268 MB) / 631242752 bytes (602 MB) up to 1908932608 bytes (1820 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G
AABB Pool Size: 4714 (263984 bytes; 0 MB) allocated, 4345 (243320 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
FML: MCP v8.11 FML v6.4.45.953 Minecraft Forge 9.11.1.953 Optifine OptiFine_1.6.4_HD_U_C8 4 mods loaded, 4 mods active
mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{6.4.45.953} [Forge Mod Loader] (minecraftforge-9.11.1.953.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{9.11.1.953} [Minecraft Forge] (minecraftforge-9.11.1.953.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_ZanMinimap{0.9.4} [Zan's Minimap] (1.6.4-Forge9.11.1.953.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Profiler Position: N/A (disabled)
Vec3 Pool Size: 4819 (269864 bytes; 0 MB) allocated, 2290 (128240 bytes; 0 MB) used
Player Count: 1 / 8; [EntityPlayerMP['jturnism'/468995, l='World Survival', x=264.66, y=72.00, z=-273.51]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'