Minecraft Crash Report

I have two mods installed
Mod loader and rei's minimap

---- Minecraft Crash Report ----
Time: 09/12/12 16:54
Description: Exception in world tick

java.lang.ArrayIndexOutOfBoundsException
at zs.a(Chunk.java:1299)
at axz.a(NetClientHandler.java:1129)
at du.a(SourceFile:135)
at cg.b(SourceFile:349)
at axz.d(NetClientHandler.java:90)
at ayh.b(SourceFile:62)
at net.minecraft.client.Minecraft.l(SourceFile:1331)
at net.minecraft.client.Minecraft.J(SourceFile:582)
at net.minecraft.client.Minecraft.run(SourceFile:534)
at java.lang.Thread.run(Unknown Source)


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

-- Head --
Stacktrace:
at zs.a(Chunk.java:1299)
at axz.a(NetClientHandler.java:1129)
at du.a(SourceFile:135)
at cg.b(SourceFile:349)
at axz.d(NetClientHandler.java:90)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [ayk['Edwardb121'/1884, l='MpServer', x=309.56, y=93.74, z=240.67]]
Chunk stats: MultiplayerChunkCache: 338
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (-27,64,287), Chunk: (at 5,4,15 in -2,17; contains blocks -32,0,272 to -17,255,287), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 30511864 game time, 422112279 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: 41 total; [ayk['Edwardb121'/1884, l='MpServer', x=309.56, y=93.74, z=240.67], qr['Zombie'/1767, l='MpServer', x=351.50, y=45.00, z=223.06], qc['Creeper'/948, l='MpServer', x=266.50, y=52.00, z=303.50], qn['Skeleton'/1770, l='MpServer', x=343.50, y=39.00, z=215.34], qr['Zombie'/1769, l='MpServer', x=340.50, y=39.00, z=215.50], qr['Zombie'/1768, l='MpServer', x=350.63, y=30.00, z=212.56], qr['Zombie'/944, l='MpServer', x=295.50, y=46.00, z=202.50], ph['Squid'/1570, l='MpServer', x=405.22, y=60.34, z=300.53], oz['Cow'/406, l='MpServer', x=377.50, y=72.00, z=247.69], qd['Enderman'/1012, l='MpServer', x=333.47, y=17.00, z=223.94], qr['Zombie'/1014, l='MpServer', x=332.53, y=17.00, z=221.13], ph['Squid'/1569, l='MpServer', x=407.06, y=59.69, z=297.59], qn['Skeleton'/1236, l='MpServer', x=309.50, y=59.00, z=322.50], qn['Skeleton'/1237, l='MpServer', x=312.53, y=58.00, z=323.09], qc['Creeper'/1597, l='MpServer', x=292.94, y=22.00, z=331.41], qn['Skeleton'/1238, l='MpServer', x=309.50, y=59.00, z=318.50], qp['Spider'/1714, l='MpServer', x=326.50, y=13.00, z=300.50], qn['Skeleton'/1786, l='MpServer', x=346.50, y=33.00, z=295.50], qr['Zombie'/1787, l='MpServer', x=344.91, y=29.00, z=287.38], pd['Pig'/386, l='MpServer', x=367.53, y=28.00, z=265.16], qr['Zombie'/331, l='MpServer', x=299.50, y=42.00, z=189.50], qr['Zombie'/1788, l='MpServer', x=343.75, y=34.00, z=291.44], qc['Creeper'/1669, l='MpServer', x=299.50, y=38.00, z=332.50], qc['Creeper'/1668, l='MpServer', x=298.50, y=38.00, z=331.50], qc['Creeper'/1670, l='MpServer', x=297.50, y=38.00, z=329.50], qr['Zombie'/1195, l='MpServer', x=297.50, y=18.00, z=314.50], qn['Skeleton'/1533, l='MpServer', x=293.09, y=59.00, z=315.59], qp['Spider'/1602, l='MpServer', x=340.59, y=24.00, z=256.09], qp['Spider'/1603, l='MpServer', x=337.09, y=24.00, z=254.84], qr['Zombie'/499, l='MpServer', x=366.50, y=19.00, z=254.50], qr['Zombie'/1196, l='MpServer', x=299.50, y=18.00, z=314.50], qn['Skeleton'/1531, l='MpServer', x=292.34, y=63.00, z=309.66], qo['Slime'/1388, l='MpServer', x=291.63, y=31.00, z=264.38], qc['Creeper'/1080, l='MpServer', x=316.50, y=40.00, z=179.50], qn['Skeleton'/773, l='MpServer', x=284.50, y=38.00, z=184.50], qc['Creeper'/1631, l='MpServer', x=344.41, y=35.00, z=328.97], qr['Zombie'/734, l='MpServer', x=313.06, y=60.00, z=224.50], qc['Creeper'/1630, l='MpServer', x=346.50, y=35.00, z=328.50], qn['Skeleton'/1446, l='MpServer', x=320.38, y=65.00, z=277.66], qc['Creeper'/1801, l='MpServer', x=301.50, y=27.00, z=312.50], qr['Zombie'/1076, l='MpServer', x=321.44, y=47.00, z=208.00]]
Retry entities: 0 total; []
Stacktrace:
at ayh.a(SourceFile:290)
at net.minecraft.client.Minecraft.l(SourceFile:1338)
at net.minecraft.client.Minecraft.J(SourceFile:582)
at net.minecraft.client.Minecraft.run(SourceFile:534)
at java.lang.Thread.run(Unknown Source)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [ayk['Edwardb121'/1884, l='MpServer', x=309.56, y=93.74, z=240.67]]
Chunk stats: MultiplayerChunkCache: 338
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (-27,64,287), Chunk: (at 5,4,15 in -2,17; contains blocks -32,0,272 to -17,255,287), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 30511864 game time, 422112279 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: 41 total; [ayk['Edwardb121'/1884, l='MpServer', x=309.56, y=93.74, z=240.67], qr['Zombie'/1767, l='MpServer', x=351.50, y=45.00, z=223.06], qc['Creeper'/948, l='MpServer', x=266.50, y=52.00, z=303.50], qn['Skeleton'/1770, l='MpServer', x=343.50, y=39.00, z=215.34], qr['Zombie'/1769, l='MpServer', x=340.50, y=39.00, z=215.50], qr['Zombie'/1768, l='MpServer', x=350.63, y=30.00, z=212.56], qr['Zombie'/944, l='MpServer', x=295.50, y=46.00, z=202.50], ph['Squid'/1570, l='MpServer', x=405.22, y=60.34, z=300.53], oz['Cow'/406, l='MpServer', x=377.50, y=72.00, z=247.69], qd['Enderman'/1012, l='MpServer', x=333.47, y=17.00, z=223.94], qr['Zombie'/1014, l='MpServer', x=332.53, y=17.00, z=221.13], ph['Squid'/1569, l='MpServer', x=407.06, y=59.69, z=297.59], qn['Skeleton'/1236, l='MpServer', x=309.50, y=59.00, z=322.50], qn['Skeleton'/1237, l='MpServer', x=312.53, y=58.00, z=323.09], qc['Creeper'/1597, l='MpServer', x=292.94, y=22.00, z=331.41], qn['Skeleton'/1238, l='MpServer', x=309.50, y=59.00, z=318.50], qp['Spider'/1714, l='MpServer', x=326.50, y=13.00, z=300.50], qn['Skeleton'/1786, l='MpServer', x=346.50, y=33.00, z=295.50], qr['Zombie'/1787, l='MpServer', x=344.91, y=29.00, z=287.38], pd['Pig'/386, l='MpServer', x=367.53, y=28.00, z=265.16], qr['Zombie'/331, l='MpServer', x=299.50, y=42.00, z=189.50], qr['Zombie'/1788, l='MpServer', x=343.75, y=34.00, z=291.44], qc['Creeper'/1669, l='MpServer', x=299.50, y=38.00, z=332.50], qc['Creeper'/1668, l='MpServer', x=298.50, y=38.00, z=331.50], qc['Creeper'/1670, l='MpServer', x=297.50, y=38.00, z=329.50], qr['Zombie'/1195, l='MpServer', x=297.50, y=18.00, z=314.50], qn['Skeleton'/1533, l='MpServer', x=293.09, y=59.00, z=315.59], qp['Spider'/1602, l='MpServer', x=340.59, y=24.00, z=256.09], qp['Spider'/1603, l='MpServer', x=337.09, y=24.00, z=254.84], qr['Zombie'/499, l='MpServer', x=366.50, y=19.00, z=254.50], qr['Zombie'/1196, l='MpServer', x=299.50, y=18.00, z=314.50], qn['Skeleton'/1531, l='MpServer', x=292.34, y=63.00, z=309.66], qo['Slime'/1388, l='MpServer', x=291.63, y=31.00, z=264.38], qc['Creeper'/1080, l='MpServer', x=316.50, y=40.00, z=179.50], qn['Skeleton'/773, l='MpServer', x=284.50, y=38.00, z=184.50], qc['Creeper'/1631, l='MpServer', x=344.41, y=35.00, z=328.97], qr['Zombie'/734, l='MpServer', x=313.06, y=60.00, z=224.50], qc['Creeper'/1630, l='MpServer', x=346.50, y=35.00, z=328.50], qn['Skeleton'/1446, l='MpServer', x=320.38, y=65.00, z=277.66], qc['Creeper'/1801, l='MpServer', x=301.50, y=27.00, z=312.50], qr['Zombie'/1076, l='MpServer', x=321.44, y=47.00, z=208.00]]
Retry entities: 0 total; []

-- System Details --
Details:
Minecraft Version: 1.4.4
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_03, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 733221536 bytes (699 MB) / 1029046272 bytes (981 MB) up to 1029046272 bytes (981 MB)
JVM Flags: 2 total; -Xms1024m -Xmx1024m
AABB Pool Size: 730 (40880 bytes; 0 MB) allocated, 539 (30184 bytes; 0 MB) used
Suspicious classes: ModLoader, EntityRendererProxy, ModTextureStatic, ...[reifnsk.minimap.ReiMinimap, WaypointEntity, MinimapException, ...]
IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
ModLoader: Mods loaded: 2
ModLoader 1.4.5
mod_ReiMinimap v3.2_05 [1.4.5]

LWJGL: 2.4.2
OpenGL: AMD Radeon HD 7700 Series GL version 4.2.11733 Compatibility Profile Context, ATI Technologies Inc.
Is Modded: Very likely; Jar signature invalidated
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: 506 (28336 bytes; 0 MB) allocated, 242 (13552 bytes; 0 MB) used