Here is the crash report:

---- Minecraft Crash Report ----
// Oh - I know what I did wrong!

Time: 1/11/15 2:11 PM
Description: Exception in server tick loop

java.lang.NoSuchMethodError: net.minecraft.entity.player.EntityPlayer.func_70666_h(F)Lnet/minecraft/util/Vec3;
at net.divinerpg.items.vanilla.ItemSerenadeStriker.func_77659_a(ItemSerenadeStriker.java:37)
at net.minecraft.item.ItemStack.func_77957_a(ItemStack.java:146)
at net.minecraft.server.management.ItemInWorldManager.func_73085_a(ItemInWorldManager.java:316)
at net.minecraft.network.NetHandlerPlayServer.func_147346_a(NetHandlerPlayServer.java:539)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:60)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:9)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212)
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:334)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
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:

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Linux (amd64) version 3.2.0-4-amd64
Java Version: 1.7.0_65, Oracle Corporation
Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 392888000 bytes (374 MB) / 881328128 bytes (840 MB) up to 1908932608 bytes (1820 MB)
JVM Flags: 2 total; -Xmx2048M -Xms512M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 95
FML: MCP v9.05 FML v7.10.85.1284 Minecraft Forge 10.13.2.1284 13 mods loaded, 13 mods active
mcp{9.05} Minecraft Coder Pack Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{7.10.85.1284} Forge Mod Loader Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{10.13.2.1284} Minecraft Forge Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BiblioCraft{1.9.2} BiblioCraft Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BiomesOPlenty{2.1.0} Biomes O' Plenty Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CarpentersBlocks{3.3.4.2} [Carpenter's Blocks](Carpenter's Blocks v3.3.4.2 - MC 1.7.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ForgeMultipart{1.1.1.320} Forge Multipart Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
chisel{2.2.1} [Chisel](Chisel 2-2.2.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
divinerpg{1.4.0} DivineRPG Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FastCraft{1.9} FastCraft Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
McMultipart{1.1.1.320} Minecraft Multipart Plugin Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
warpbook{2.0.null} Warp Book Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ForgeMicroblock{1.1.1.320} Forge Microblocks Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Player Count: 2 / 20; [EntityPlayerMP['krwminer'/177, l='world', x=1088.70, y=64.00, z=647.11], EntityPlayerMP['CodeHampton'/3409, l='world', x=1093.15, y=66.00, z=690.04]]
Is Modded: Definitely; Server brand changed to 'fml,forge'
Type: Dedicated Server (map_server.txt)

I'm using the recommended forge and I see your not, but I don't know if that's the problem.
Also please use pastebin.com or something next time.

It's calling a client method on the server. Are you in SMP?

Title says MP.

I meant you

Oh... Yeah I was. I realized this after I posted my first comment. Tried fixing it but I can't test it because the server isn't working for me in eclipse.