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Im trying to start a Modded Survival and i got this crash trying to join a world [spoiler below]

Put your spoiler here.

---- Minecraft Crash Report ----
// Don't do that.

Time: 7/15/15 1:28 PM
Description: Unexpected error

java.lang.NoClassDefFoundError: Could not initialize class mcp.mobius.waila.api.SpecialChars
at mcp.mobius.waila.overlay.Tooltip.<init>(Tooltip.java:110)
at mcp.mobius.waila.overlay.Tooltip.<init>(Tooltip.java:99)
at mcp.mobius.waila.overlay.WailaTickHandler.tickClient(WailaTickHandler.java:99)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_168_WailaTickHandler_tickClient_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:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
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:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
at mcp.mobius.waila.overlay.Tooltip.<init>(Tooltip.java:110)
at mcp.mobius.waila.overlay.Tooltip.<init>(Tooltip.java:99)
at mcp.mobius.waila.overlay.WailaTickHandler.tickClient(WailaTickHandler.java:99)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_168_WailaTickHandler_tickClient_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)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [EntityClientPlayerMP['CalMess'/242, l='MpServer', x=-56.50, y=65.62, z=259.50]]
Chunk stats: MultiplayerChunkCache: 60, 60
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (-52,64,254), Chunk: (at 12,4,14 in -4,15; contains blocks -64,0,240 to -49,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 27 game time, 27 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
Forced entities: 60 total; [EntityPig['Pig'/137, l='MpServer', x=-14.50, y=67.00, z=245.50], EntitySkeleton['Skeleton'/820, l='MpServer', x=-56.50, y=30.00, z=208.50], EntityPig['Pig'/136, l='MpServer', x=-16.19, y=68.00, z=242.50], EntityBat['Bat'/272, l='MpServer', x=-94.41, y=50.22, z=297.66], EntityPig['Pig'/138, l='MpServer', x=-16.50, y=69.00, z=240.50], EntitySkeleton['Skeleton'/819, l='MpServer', x=-54.50, y=30.00, z=208.50], EntityPig['Pig'/128, l='MpServer', x=-8.50, y=65.00, z=208.50], EntityPig['Pig'/131, l='MpServer', x=-18.55, y=68.00, z=230.53], EntityPig['Pig'/133, l='MpServer', x=-17.19, y=68.00, z=230.53], EntityPig['Pig'/132, l='MpServer', x=-18.50, y=68.00, z=229.03], EntityPig['Pig'/135, l='MpServer', x=-17.78, y=68.00, z=242.50], EntityCharger['Charger'/672, l='MpServer', x=1.96, y=64.00, z=329.50], EntityPig['Pig'/134, l='MpServer', x=-14.75, y=68.00, z=230.11], EntityBat['Bat'/804, l='MpServer', x=-59.50, y=54.00, z=213.50], EntityCharger['Charger'/566, l='MpServer', x=-89.50, y=63.00, z=256.50], EntityBat['Bat'/805, l='MpServer', x=-60.50, y=54.00, z=211.50], EntityCharger['Charger'/565, l='MpServer', x=-93.50, y=63.00, z=253.50], EntityBat['Bat'/806, l='MpServer', x=-63.50, y=54.00, z=210.50], EntityCharger['Charger'/564, l='MpServer', x=-98.50, y=63.00, z=251.50], EntityBat['Bat'/807, l='MpServer', x=-61.50, y=54.00, z=210.50], EntityBat['Bat'/271, l='MpServer', x=-97.72, y=50.17, z=297.75], EntityBat['Bat'/791, l='MpServer', x=11.50, y=40.00, z=236.50], EntityBat['Bat'/311, l='MpServer', x=8.31, y=52.05, z=275.29], EntityGhost['Ghost'/533, l='MpServer', x=-84.50, y=38.00, z=309.50], EntityCharger['Charger'/670, l='MpServer', x=8.51, y=64.00, z=333.48], EntityCharger['Charger'/671, l='MpServer', x=3.95, y=64.00, z=329.50], EntityGoblin['Goblin'/428, l='MpServer', x=-51.50, y=20.00, z=314.50], EntityShadow['Shadow'/541, l='MpServer', x=-94.50, y=22.00, z=226.50], EntityCreeper['Creeper'/477, l='MpServer', x=-88.50, y=24.00, z=231.50], EntityPig['Pig'/216, l='MpServer', x=1.50, y=67.00, z=279.50], EntityTrail['unknown'/459, l='MpServer', x=-56.50, y=65.62, z=259.50], EntityPig['Pig'/217, l='MpServer', x=3.50, y=67.00, z=279.50], EntityShadow['Shadow'/630, l='MpServer', x=-57.50, y=19.00, z=242.50], EntityPig['Pig'/214, l='MpServer', x=-0.50, y=67.00, z=279.50], EntityPig['Pig'/215, l='MpServer', x=1.50, y=67.00, z=279.50], EntityPig['Pig'/102, l='MpServer', x=-68.50, y=67.00, z=277.50], EntityBat['Bat'/508, l='MpServer', x=-11.97, y=26.19, z=295.03], EntityPig['Pig'/103, l='MpServer', x=-69.50, y=66.00, z=275.50], EntityPig['Pig'/100, l='MpServer', x=-70.50, y=66.00, z=273.50], EntityPig['Pig'/101, l='MpServer', x=-70.50, y=66.00, z=273.50], EntityBat['Bat'/506, l='MpServer', x=-17.50, y=26.19, z=291.47], EntityPig['Pig'/110, l='MpServer', x=-48.50, y=71.00, z=296.50], EntityPig['Pig'/111, l='MpServer', x=-50.50, y=71.00, z=298.50], EntityCow['Cow'/230, l='MpServer', x=14.50, y=67.00, z=217.50], EntityPig['Pig'/108, l='MpServer', x=-53.09, y=72.00, z=301.53], EntityCow['Cow'/229, l='MpServer', x=8.19, y=67.00, z=226.53], EntityCow['Cow'/228, l='MpServer', x=9.53, y=67.00, z=225.22], EntityPig['Pig'/109, l='MpServer', x=-50.50, y=72.00, z=299.50], EntityCow['Cow'/227, l='MpServer', x=9.81, y=67.00, z=223.81], EntityCow['Cow'/226, l='MpServer', x=8.22, y=67.00, z=222.22], EntityCow['Cow'/119, l='MpServer', x=-35.50, y=66.00, z=244.50], EntityCow['Cow'/118, l='MpServer', x=-33.50, y=66.00, z=244.50], EntityPig['Pig'/125, l='MpServer', x=-26.53, y=68.00, z=289.19], EntityPig['Pig'/124, l='MpServer', x=-26.47, y=68.00, z=292.50], EntityPig['Pig'/123, l='MpServer', x=-25.22, y=68.00, z=290.78], EntityPig['Pig'/122, l='MpServer', x=-27.78, y=68.00, z=292.50], EntityClientPlayerMP['CalMess'/242, l='MpServer', x=-56.50, y=65.62, z=259.50], EntityCow['Cow'/121, l='MpServer', x=-33.50, y=66.00, z=246.50], EntityBat['Bat'/362, l='MpServer', x=-88.97, y=37.05, z=314.97], EntityCow['Cow'/120, l='MpServer', x=-35.50, y=66.00, z=247.50]]
Retry entities: 0 total; []
Server brand: fml,forge
Server type: Integrated singleplayer server
Stacktrace:
at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:373)
at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2444)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:927)
at net.minecraft.client.main.Main.main(SourceFile:148)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Mac OS X (x86_64) version 10.9.5
Java Version: 1.6.0_65, Apple Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
Memory: 2937604392 bytes (2801 MB) / 3212509184 bytes (3063 MB) up to 3212509184 bytes (3063 MB)
JVM Flags: 2 total; -Xmx3072M -Xms3072M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1481 25 mods loaded, 25 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-1.7.10-10.13.4.1481-1.7.10.jar)
UCHIJAAAA Forge{10.13.4.1481} [Minecraft Forge] (forge-1.7.10-10.13.4.1481-1.7.10.jar)
UCHIJAAAA TooManyItems{1.7.10} [TooManyItems] (minecraft.jar)
UCHIJAAAA <CoFH ASM>{000} [CoFH ASM] (minecraft.jar)
UCHIJAAAA debug{1.0} [debug] (Dense-Ores-Mod-1.7.10.jar)
UCHIJAAAA Backpack{2.0.0} [Backpack] (14143770585_Backpacks-Mod.jar)
UCHIJAAAA bspkrsCore{6.13} [bspkrsCore] (_BspkrsCore-1.7.10.jar)
UCHIJAAAA nevermine{1.1.1} [Nevermine] (AdventOfAscensionV2.0.jar)
UCHIJAAAA blood{1.0} [Blood Particles - Reloaded] (Blood-Particles-Mod-1.7.10.jar)
UCHIJAAAA CoFHCore{1.7.10R3.0.3} [CoFH Core] (CoFHCore-[1.7.10]3.0.3-303.jar)
UCHIJAAAA eternalfrost{2.0b4} [Eternal Frost] (eternalfrost-2.0b6.jar)
UCHIJAAAA FoodPlus{3.0rS} [§bFood Plus] (Food-Plus-Mod-1.7.10.jar)
UCHIJAAAA GemsMod{1.5.2} [GemsMod] (GemsMod-1.7.10-1.5.2.jar)
UCHIJAAAA iChunUtil{4.2.2} [iChunUtil] (iChunUtil-4.2.2.jar)
UCHIJAAAA GraviGun{4.0.0-beta} [GraviGun] (Gravity-Gun-Mod-1.7.10-2.jar)
UCHIJAAAA GrimoireOfGaia{1.0.0} [Grimoire of Gaia 3] (GrimoireOfGaia3-1.7.10-1.1.1.jar)
UCHIJAAAA MobDismemberment{4.0.0} [MobDismemberment] (MobDismemberment-4.0.0.jar)
UCHIJAAAA Morph{0.9.0} [Morph] (Morphing-Mod-1.7.10.jar)
UCHIJAAAA cfm{3.4.7} [ß9MrCrayfish's Furniture Mod] (MrCrayfishFurnitureModv3.4.7(1.7.10).jar)
UCHIJAAAA NetherOres{1.7.10R2.3.0RC3} [Nether Ores] (NetherOres-[1.7.10]2.3.0RC3-84.jar)
UCHIJAAAA SoMuchArmor{Alpha 2.1} [So Much Armor] (So Much Armor-1.7.10-2.3.jar)
UCHIJAAAA Waila{1.5.10} [Waila] (Waila-1.5.10_1.7.10.jar)
UCHIJAAAA Waypoints{1.1.1} [Waypoints] (waypoints-1.1.1.jar)
UCHIJAAAA denseores{1.0} [Dense Ores] (Dense-Ores-Mod-1.7.10.jar)
GL info: ' Vendor: 'ATI Technologies Inc.' Version: '2.1 ATI-1.24.38' Renderer: 'AMD Radeon HD 6750M OpenGL Engine'
CoFHCore: -[1.7.10]3.0.3-303
NetherOres: Lacking version information.
Launched Version: 1.7.10-Forge10.13.4.1481-1.7.10
LWJGL: 2.9.1
OpenGL: AMD Radeon HD 6750M OpenGL Engine GL version 2.1 ATI-1.24.38, ATI Technologies Inc.
GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because ARB_framebuffer_object 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)

If anyone can help that would be great...

I don't know the cause, but this is a problem with Waila. Try uninstalling Waila, that should fix the problem.

Alright thanks