This is a community made Flansmod, so it may be hard to understand, but my game crashes continuously whenever I shoot or reload a gun, I have had other problems to, like crashing when summoning vehicles.
Here is a my crash data for when I reloaded a gun:
---- Minecraft Crash Report ----
// I let you down. Sorry :(

Time: 11/19/15 9:03 PM
Description: Exception ticking world

java.lang.NullPointerException: Exception ticking world
at com.flansmod.common.FlansMod.onLivingSpecialSpawn(FlansMod.java:374)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_66_FlansMod_onLivingSpecialSpawn_EntityJoinWorldEvent.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.minecraft.world.World.func_72838_d(World.java:1134)
at net.minecraft.world.SpawnerAnimals.func_77192_a(SpawnerAnimals.java:172)
at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:199)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:693)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:598)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:164)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:478)
at java.lang.Thread.run(Unknown Source)

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

-- Head --
Stacktrace:
at com.flansmod.common.FlansMod.onLivingSpecialSpawn(FlansMod.java:374)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_66_FlansMod_onLivingSpecialSpawn_EntityJoinWorldEvent.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.minecraft.world.World.func_72838_d(World.java:1134)
at net.minecraft.world.SpawnerAnimals.func_77192_a(SpawnerAnimals.java:172)
at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:199)

-- Affected level --
Details:
Level name: Flans survival
All players: 1 total; [EntityPlayerMP['clawman3050'/160, l='Flans survival', x=320.36, y=70.00, z=102.81]]
Chunk stats: ServerChunkCache: 528 Drop: 0
Level seed: -450790387220984722
Level generator: ID 00 - default, ver 1. Features enabled: true
Level generator options:
Level spawn location: 0.00,64.00,244.00 - World: (0,64,244), Chunk: (at 0,4,4 in 0,15; contains blocks 0,0,240 to 15,255,255), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 7727 game time, 7727 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 59887 (now: false), thunder time: 158811 (now: false)
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: true
Stacktrace:
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:693)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:598)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:164)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:478)
at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
Minecraft Version: 1.8
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_80, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 362701920 bytes (345 MB) / 884510720 bytes (843 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: 13, tallocated: 95
FML: MCP v9.10 FML v8.0.99.99 Minecraft Forge 11.14.4.1569 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
UCHIJAAAA FML{8.0.99.99} Forge Mod Loader
UCHIJAAAA Forge{11.14.4.1569} Minecraft Forge
UCHIJAAAA xlib{1.0.0} [xlib](160.halocraft-2.0-v1.4 %281%29.jar)
UCHIJAAAA halocraft{1.4} [HaloCraft 2.0](160.halocraft-2.0-v1.4 %281%29.jar)
UCHIJAAAA fallout{[1.8] v0.2.2.1} [The Fallout Mod]([1.8]Fallout v0.2.2.1.jar)
UCHIJAAAA flansmod{5.1} [Flan's Mod](Flan's Mod-1.8-5.1.jar)
UCHIJAAAA flansmodapocalypse{1.0} [Flan's Mod: Apocalypse](Flan's Mod Apocalypse-1.8-1.0.jar)
UCHIJAAAA cfm{3.5.2} §9MrCrayfish's Furniture Mod
Loaded coremods (and transformers):
GL info: ERROR RuntimeException: No OpenGL context found in the current thread.
Profiler Position: N/A (disabled)
Player Count: 1 / 8; [EntityPlayerMP['clawman3050'/160, l='Flans survival', x=320.36, y=70.00, z=102.81]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'

Thank you If you can fix this.