When I loaded it up it crashed when it started loading pixelmon,
it said this, can someone please help me.
---- Minecraft Crash Report ----
// Daisy, daisy...

Time: 8/20/16 3:51 PM
Description: Initializing game

SplashProgress has detected a error loading Minecraft.
This can sometimes be caused by bad video drivers.
We have automatically disabled the new Splash Screen in config/splash.properties.
Try reloading minecraft before reporting any errors.
net.minecraftforge.fml.client.SplashProgress$5: java.lang.IllegalStateException: Splash thread
at net.minecraftforge.fml.client.SplashProgress.disableSplash(SplashProgress.java:564)
at net.minecraftforge.fml.client.SplashProgress.finish(SplashProgress.java:556)
at net.minecraftforge.fml.client.FMLClientHandler.haltGame(FMLClientHandler.java:304)
at net.minecraftforge.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:333)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:520)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:351)
at net.minecraft.client.main.Main.main(SourceFile:124)
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)
Caused by: java.lang.IllegalStateException: Splash thread
at net.minecraftforge.fml.client.SplashProgress.checkThreadState(SplashProgress.java:489)
at net.minecraftforge.fml.client.SplashProgress.finish(SplashProgress.java:544)
... 11 more
Caused by: java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOfRange(Arrays.java:3664)
at java.lang.String.<init>(String.java:201)
at java.lang.StringBuilder.toString(StringBuilder.java:407)
at net.minecraftforge.fml.client.SplashProgress$3.drawBar(SplashProgress.java:387)
at net.minecraftforge.fml.client.SplashProgress$3.run(SplashProgress.java:309)
at java.lang.Thread.run(Thread.java:745)


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

-- Head --
Thread: Client thread
Stacktrace:
at net.minecraftforge.fml.client.SplashProgress.disableSplash(SplashProgress.java:564)
at net.minecraftforge.fml.client.SplashProgress.finish(SplashProgress.java:556)
at net.minecraftforge.fml.client.FMLClientHandler.haltGame(FMLClientHandler.java:304)
at net.minecraftforge.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:333)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:520)

-- Initialization --
Details:
Stacktrace:
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:351)
at net.minecraft.client.main.Main.main(SourceFile:124)
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)

-- System Details --
Details:
Minecraft Version: 1.10.2
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 2029720 bytes (1 MB) / 523501568 bytes (499 MB) up to 523501568 bytes (499 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP 9.32 Powered by Forge 12.18.1.2039 4 mods loaded, 4 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHI mcp{9.19} [Minecraft Coder Pack] (minecraft.jar)
UCHI FML{8.0.99.99} [Forge Mod Loader] (forge-1.10.2-12.18.1.2039.jar)
UCHI Forge{12.18.1.2039} [Minecraft Forge] (forge-1.10.2-12.18.1.2039.jar)
UCHE pixelmon{5.0.0-beta5} [Pixelmon] (Pixelmon-1.10.2-5.0.0-beta5-universal.jar)
Loaded coremods (and transformers):
GL info: ' Vendor: 'NVIDIA Corporation' Version: '3.3.0' Renderer: 'GeForce 8600 GTS/PCIe/SSE2/3DNOW!'
Launched Version: 1.10.2-forge1.10.2-12.18.1.2039
LWJGL: 2.9.4
OpenGL: GeForce 8600 GTS/PCIe/SSE2/3DNOW! GL version 3.3.0, NVIDIA Corporation
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: Yes
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)
CPU: 2x AMD Athlon(tm) 64 X2 Dual Core Processor 5600+