Crash Report

---- Minecraft Crash Report ----
// I feel sad now :(

Time: 8/1/14 7:45 PM
Description: Ticking screen

java.lang.StringIndexOutOfBoundsException: String index out of range: -1
	at java.lang.String.substring(Unknown Source)
	at net.minecraft.client.mod_Minecade.clientChat(mod_Minecade.java:1130)
	at biv.a(NetHandlerPlayClient.java:804)
	at ga.a(SourceFile:38)
	at ga.a(SourceFile:9)
	at ef.a(SourceFile:164)
	at bbe.c(SourceFile:76)
	at azd.o(Minecraft.java:1899)
	at azd.ad(Minecraft.java:1175)
	at azd.e(Minecraft.java:1090)
	at net.minecraft.client.main.Main.main(SourceFile:103)


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

-- Head --
Stacktrace:
	at java.lang.String.substring(Unknown Source)
	at net.minecraft.client.mod_Minecade.clientChat(mod_Minecade.java:1130)
	at biv.a(NetHandlerPlayClient.java:804)
	at ga.a(SourceFile:38)
	at ga.a(SourceFile:9)
	at ef.a(SourceFile:164)
	at bbe.c(SourceFile:76)

-- Affected screen --
Details:
	Screen name: ~~ERROR~~ NullPointerException: null

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bje['LegendofMewtwo'/83929637, l='MpServer', x=0.50, y=65.62, z=0.50]]
	Chunk stats: MultiplayerChunkCache: 0, 0
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options:
	Level spawn location: World: (0,64,0), Chunk: (at 0,4,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 0 game time, 0 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: adventure (ID 2). Hardcore: false. Cheats: false
	Forced entities: 1 total; [bje['LegendofMewtwo'/83929637, l='MpServer', x=0.50, y=65.62, z=0.50]]
	Retry entities: 0 total; []
	Server brand: Spigot
	Server type: Non-integrated multiplayer server
Stacktrace:
	at biz.a(SourceFile:284)
	at azd.b(Minecraft.java:2786)
	at azd.e(Minecraft.java:1111)
	at net.minecraft.client.main.Main.main(SourceFile:103)

-- System Details --
Details:
	Minecraft Version: 1.7.2
	Operating System: Windows Vista (x86) version 6.0
	Java Version: 1.7.0_60, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 72069496 bytes (68 MB) / 124469248 bytes (118 MB) up to 1037959168 bytes (989 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	AABB Pool Size: 833 (46648 bytes; 0 MB) allocated, 2 (112 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: MinecadeMod-1.7.2
	LWJGL: 2.9.0
	OpenGL: ASUS EAH4650 series GL version 3.3.10055 Compatibility Profile Context, ATI Technologies Inc.
	Is Modded: Very likely; Jar signature invalidated
	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)