OreSpawn mod keeps crashing. Here is the report. Perfessional Only?

All of a sudden every mod I use crashes the game. Won't even load minecraft… I have done everything right cause I've used mods in the past… I have no mods right now other then OreSpawn and it just keeps crashing like the rest but I'm gonna post only the OreSpawn report on this… Right version too.

A detailed walkthrough of the error, its code path and all known details is as follows:
Head --
Stacktrace:
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:270)
at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:420)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:47)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.java:267)
at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:209)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:188)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

Conflicting mods maybe i don't know my computer is pretty **** but i have no problems with the mod

This kept happening to me until i started using the 1.6.4 version of forge and the 1.6.4 version if orespawn