Constant crashes

[minidude51]

Please help me, when I try to start Tekkit Classic my game keeps on crashing after the Mojang screen, please help, here's my crash report

--- BEGIN ERROR REPORT 7dfb87b2 --------

Generated 8/21/13 11:41 AM

 

Minecraft: Minecraft 1.2.5

OS: Windows 7 (amd64) version 6.1

Java: 1.7.0_21, Oracle Corporation

VM: Java HotSpot 64-Bit Server VM (mixed mode), Oracle Corporation

LWJGL: 2.4.2

OpenGL: AMD Radeon HD 6290 Graphics version 4.1.10825 Compatibility Profile Context, ATI Technologies Inc.

 

java.lang.NullPointerException

    at cpw.mods.fml.common.modloader.ModLoaderModContainer.init(ModLoaderModContainer.java:356)

    at cpw.mods.fml.common.Loader.modInit(Loader.java:273)

    at cpw.mods.fml.common.Loader.initializeMods(Loader.java:628)

    at cpw.mods.fml.client.FMLClientHandler.onLoadComplete(FMLClientHandler.java:223)

    at net.minecraft.client.Minecraft.a(Minecraft.java:429)

    at net.minecraft.client.Minecraft.run(Minecraft.java:738)

    at java.lang.Thread.run(Unknown Source)

--- END ERROR REPORT de322e37 ----------

[minidude51]

Please tell me if this happens to you.