When I try to join hypixel's server, i got this

---- Minecraft Crash Report ----
// On the bright side, I bought you a teddy bear!

Time: 2013/11/11 下午 6:24
Description: Ticking screen

java.lang.NullPointerException: Ticking screen
at biv.a(SourceFile:589)
at hg.a(SourceFile:32)
at hg.a(SourceFile:13)
at ef.a(SourceFile:164)
at bbe.c(SourceFile:76)
at azd.o(SourceFile:1318)
at azd.ad(SourceFile:753)
at azd.e(SourceFile:704)
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 biv.a(SourceFile:589)
at hg.a(SourceFile:32)
at hg.a(SourceFile:13)
at ef.a(SourceFile:164)
at bbe.c(SourceFile:76)

– Affected screen –
Details:
Screen name: bbe
Stacktrace:
at azd.o(SourceFile:1318)
at azd.ad(SourceFile:753)
at azd.e(SourceFile:704)
at net.minecraft.client.main.Main.main(SourceFile:103)

– System Details –
Details:
Minecraft Version: 1.7.2
Operating System: Mac OS X (x86_64) version 10.9
Java Version: 1.6.0_65, Apple Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
Memory: 1091628152 bytes (1041 MB) / 1130496000 bytes (1078 MB) up to 4286251008 bytes (4087 MB)
JVM Flags: 2 total; -Xms1G -Xmx4G
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.7.2
LWJGL: 2.9.1
OpenGL: Intel HD Graphics 5000 OpenGL Engine GL version 2.1 INTEL-8.18.26, Intel Inc.
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: [Resource Pack]
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~_ERROR~ NullPointerException: null
Anisotropic Filtering: Off (1)