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Could I have some help with this crash?

---- Minecraft Crash Report ----
// Shall we play a game?

Time: 7/15/15 9:12 AM
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
at chylex.bettersprinting.client.player.impl.LogicImplOverride.onClientTick(LogicImplOverride.java:62)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_18_LogicImplOverride_onClientTick_ClientTickEvent.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:138)
at cpw.mods.fml.common.FMLCommonHandler.onPreClientTick(FMLCommonHandler.java:325)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1587)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:973)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:898)
at net.minecraft.client.main.Main.main(SourceFile:148)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)


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: Windows 8.1 (amd64) version 6.3
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 160533888 bytes (153 MB) / 291446784 bytes (277 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
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1490 Optifine OptiFine_1.7.10_HD_U_C1 7 mods loaded, 7 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJA mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
UCHIJA FML{7.10.99.99} [Forge Mod Loader] (forge-1.7.10-10.13.4.1490-1.7.10.jar)
UCHIJA Forge{10.13.4.1490} [Minecraft Forge] (forge-1.7.10-10.13.4.1490-1.7.10.jar)
UCHIJA bspkrsCore{6.15} [bspkrsCore] ([1.7.10]bspkrsCore-universal-6.15.jar)
UCHIJA DirectionHUD{1.24} [DirectionHUD] ([1.7.10]DirectionHUD-client-1.24.jar)
UCHIJA BetterSprinting{1.1.2} [Better Sprinting] (BetterSprinting MC-1.7.10 v1.1.2.jar)
UCHIJA tYSKretsvEuPdDx{0.9.5} [Chroma Pixel] (ChromaPixel-(1.7.10)-0.9.5.jar)
GL info: ' Vendor: 'NVIDIA Corporation' Version: '4.4.0' Renderer: 'GeForce GTX 770M/PCIe/SSE2'
Launched Version: 1.7.10-Forge10.13.4.1490-1.7.10
LWJGL: 2.9.1
OpenGL: GeForce GTX 770M/PCIe/SSE2 GL version 4.4.0, NVIDIA Corporation
GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Anisotropic filtering is supported and maximum anisotropy is 16.
Shaders are available because OpenGL 2.1 is supported.

Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Packs: []
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Anisotropic Filtering: Off (1)

Sorry. I will next time. How can I fix better sprinting?