minecraft crashed every time i try to enter

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

Time: 09/04/15 21.11
Description: Initializing game

bmh: Unable to fit: minecraft:items/leather - size: 128x128 - Maybe try a lowerresolution resourcepack?
at bmg.c(SourceFile:60)
at bmi.b(SourceFile:197)
at bmi.a(SourceFile:77)
at bou.j(SourceFile:553)
at bou.a(SourceFile:139)
at bov.a(SourceFile:23)
at bno.a(SourceFile:99)
at avf.am(SourceFile:448)
at avf.a(SourceFile:310)
at net.minecraft.client.main.Main.main(SourceFile:124)

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

– Head –
Stacktrace:
at bmg.c(SourceFile:60)
at bmi.b(SourceFile:197)
at bmi.a(SourceFile:77)
at bou.j(SourceFile:553)
at bou.a(SourceFile:139)
at bov.a(SourceFile:23)
at bno.a(SourceFile:99)
at avf.am(SourceFile:448)

– Initialization –
Details:
Stacktrace:
at avf.a(SourceFile:310)
at net.minecraft.client.main.Main.main(SourceFile:124)

– System Details –
Details:
Minecraft Version: 1.8.3
Operating System: Windows 7 (amd64) version 6.1
CPU: 4x Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 87586184 bytes (83 MB) / 305008640 bytes (290 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.8.3
LWJGL: 2.9.4
OpenGL: Intel(R) HD Graphics Family GL version 3.0.0 - Build 8.15.10.2291, Intel
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: No
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: [ChromaHills-128x1.8_v.11.zip]
Current Language: Italiano (Italia)
Profiler Position: N/A (disabled)1.