Hopper: dk: Error while parsing: TranslatableComponent{key='multiplayer.player.joined', args=[abdulazizam_], siblings=[], style=Style{hasParent=false, color=§

dk: Error while parsing: TranslatableComponent{key='multiplayer.player.joined', args=[abdulazizam_], siblings=[], style=Style{hasParent=false, color=§e, bold=null, italic=null, underlined=null, obfuscated=null}}
	at dj.e(SourceFile:79)
	at dj.c(SourceFile:125)
	at net.minecraft.server.MinecraftServer.a(SourceFile:736)
	at hw.a(SourceFile:747)
	at hw.a(SourceFile:752)
	at hw.a(SourceFile:94)
	at bnq.b(SourceFile:73)
	at net.minecraft.server.MinecraftServer.t(SourceFile:481)
	at net.minecraft.server.MinecraftServer.s(SourceFile:398)
	at bnn.s(SourceFile:124)
	at net.minecraft.server.MinecraftServer.run(SourceFile:332)
	at hr.run(SourceFile:575)
Caused by: java.util.FormatFlagsConversionMismatchException: Conversion = s, Flags =  
	at java.util.Formatter$FormatSpecifier.failMismatch(Unknown Source)
	at java.util.Formatter$FormatSpecifier.checkBadFlags(Unknown Source)
	at java.util.Formatter$FormatSpecifier.checkGeneral(Unknown Source)
	at java.util.Formatter$FormatSpecifier.<init>(Unknown Source)
	at java.util.Formatter.parse(Unknown Source)
	at java.util.Formatter.format(Unknown Source)
	at java.util.Formatter.format(Unknown Source)
	at java.lang.String.format(Unknown Source)
	at dj.e(SourceFile:76)
	... 11 more

---- Minecraft Crash Report ----
// Hey, that tickles! Hehehe!

Time: 06/09/13 03:44 م
Description: Exception in server tick loop

dk: Error while parsing: TranslatableComponent{key='multiplayer.player.joined', args=[fahadv4], siblings=[], style=Style{hasParent=false, color=§e, bold=null, italic=null, underlined=null, obfuscated=null}}
	at dj.e(SourceFile:79)
	at dj.c(SourceFile:125)
	at net.minecraft.server.MinecraftServer.a(SourceFile:736)
	at hw.a(SourceFile:747)
	at hw.a(SourceFile:752)
	at hw.a(SourceFile:94)
	at bnq.b(SourceFile:73)
	at net.minecraft.server.MinecraftServer.t(SourceFile:481)
	at net.minecraft.server.MinecraftServer.s(SourceFile:398)
	at bnn.s(SourceFile:124)
	at net.minecraft.server.MinecraftServer.run(SourceFile:332)
	at hr.run(SourceFile:575)
Caused by: java.util.FormatFlagsConversionMismatchException: Conversion = s, Flags =  
	at java.util.Formatter$FormatSpecifier.failMismatch(Unknown Source)
	at java.util.Formatter$FormatSpecifier.checkBadFlags(Unknown Source)
	at java.util.Formatter$FormatSpecifier.checkGeneral(Unknown Source)
	at java.util.Formatter$FormatSpecifier.<init>(Unknown Source)
	at java.util.Formatter.parse(Unknown Source)
	at java.util.Formatter.format(Unknown Source)
	at java.util.Formatter.format(Unknown Source)
	at java.lang.String.format(Unknown Source)
	at dj.e(SourceFile:76)
	... 11 more


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

-- System Details --
Details:
	Minecraft Version: 13w36b
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 107635408 bytes (102 MB) / 279257088 bytes (266 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
	AABB Pool Size: 493 (27608 bytes; 0 MB) allocated, 493 (27608 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 46 (2576 bytes; 0 MB) allocated, 46 (2576 bytes; 0 MB) used
	Player Count: 0 / 8; []
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.