So, I need help! Can someone tell me what to do? This is my crash report:

---- Minecraft Crash Report ----

WARNING: coremods are present:
Contact their authors BEFORE contacting forge

// My bad.

Time: 11/29/15 10:36 AM
Description: Exception in server tick loop

java.lang.NullPointerException: Exception in server tick loop
at drzhark.customspawner.CustomSpawner.RemoveCustomSpawn(CustomSpawner.java:498)
at drzhark.customspawner.environment.EnvironmentSettings.populateSpawns(EnvironmentSettings.java:834)
at drzhark.customspawner.environment.EnvironmentSettings.updateSettings(EnvironmentSettings.java:243)
at drzhark.customspawner.utils.CMSUtils.addWorldEnvironment(CMSUtils.java:134)
at drzhark.customspawner.EventHooks.structureMapGen(EventHooks.java:176)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_12_EventHooks_structureMapGen_InitMapGenEvent.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:55)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:140)
at net.minecraftforge.event.terraingen.TerrainGen.getModdedMapGen(TerrainGen.java:28)
at net.minecraft.world.gen.ChunkProviderGenerate.<init>(ChunkProviderGenerate.java:81)
at at.tyron.vintagecraft.WorldGen.ChunkProviderGenerateVC.<init>(ChunkProviderGenerateVC.java:90)
at at.tyron.vintagecraft.WorldGen.Helper.WorldProviderVC.func_76555_c(WorldProviderVC.java:53)
at net.minecraft.world.WorldServer.func_72970_h(WorldServer.java:748)
at net.minecraft.world.WorldServer.<init>(WorldServer.java:118)
at WorldServerOF.<init>(WorldServerOF.java:25)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:88)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:206)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)
at java.lang.Thread.run(Thread.java:745)


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

-- System Details --
Details:
Minecraft Version: 1.8
Operating System: Windows 8 (amd64) version 6.2
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 477956704 bytes (455 MB) / 902758400 bytes (860 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.10 FML v8.0.99.99 Minecraft Forge 11.14.3.1543 Optifine OptiFine_1.8_HD_U_D5 14 mods loaded, 14 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAA mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
UCHIJAA FML{8.0.99.99} [Forge Mod Loader] (forge-1.8-11.14.3.1543.jar)
UCHIJAA Forge{11.14.3.1543} [Minecraft Forge] (forge-1.8-11.14.3.1543.jar)
UCHIJAA XaeroBetterPvP{1.6.9} [Better PVP Mod] (BetterPvP_1.6.9_Forge_1.8.jar)
UCHIJAA CookingPlus{0.6} [CookingPlus] (CookingPlus-0.6.1.jar)
UCHIJAA CustomSpawner{3.4.0} [DrZhark's CustomSpawner] (CustomMobSpawner 3.4.0.jar)
UCHIJAA MoCreatures{8.0.0.devA} [DrZhark's Mo'Creatures Mod] (DrZharks MoCreatures Mod-8.0.0.devA.jar)
UCHIJAA RadixCore{2.0.3-1.8} [RadixCore] (RadixCore-2.0.3-1.8-universal.jar)
UCHIJAA MCA{5.0.6.1-1.8} [Minecraft Comes Alive] (MCA-5.0.6.1-1.8-universal.jar)
UCHIJAA cfm{3.4.7} [§9MrCrayfish's Furniture Mod] (MrCrayfishFurnitureModv3.4.7-build5(1.8).jar)
UCHIJAA corerm{1.2c} [RikMuld's Core] (RikMuldsCore_1.2c.jar)
UCHIJAA camping{2.2e} [The Camping Mod 2] (TheCampingMod_2.2e.jar)
UCHIJAA UsefulFood{1.5.0} [UsefulFood] (UsefulFood-1.8-1.5.0a.jar)
UCHIJAA vintagecraft{0.8.96} [VintageCraft] (vintagecraft-1.8-0.8.96.jar)
Loaded coremods (and transformers):
GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
Profiler Position: N/A (disabled)
Player Count: 0 / 8; []
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'