---- Minecraft Crash Report ----
// I let you down. Sorry :(

Time: 02/05/16 20:25
Description: Exception in server tick loop

java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(Unknown Source)
	at java.util.HashMap$KeyIterator.next(Unknown Source)
	at net.minecraft.entity.EntityTracker.func_72788_a(EntityTracker.java:269)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:648)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
	at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111)
	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: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_77, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 360385824 bytes (343 MB) / 656408576 bytes (626 MB) up to 954728448 bytes (910 MB)
	JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xms512m -Xmx1024m
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 9, tallocated: 61
	FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1558 5 mods loaded, 5 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] (minecraft.jar)
	UCHIJAAAA	FML{7.10.99.99} [Forge Mod Loader] (forge-1.7.10-10.13.4.1558-1.7.10-universal.jar)
	UCHIJAAAA	Forge{10.13.4.1558} [Minecraft Forge] (forge-1.7.10-10.13.4.1558-1.7.10-universal.jar)
	UCHIJAAAA	FastCraft{1.21} [FastCraft] (fastcraft-1.21.jar)
	UCHIJAAAA	RTG{0.8.0d} [Realistic Terrain Generation] (RTG0.8.jar)
	GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Player Count: 1 / 8; [EntityPlayerMP['WhichOnesPink'/638, l='2564342965812300752', x=302.95, y=67.00, z=-954.58]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Definitely; Client brand changed to 'fml,forge'