Footage unable to playback footage in Premiere

Hello, I'm having a little difficulties in premiere pro cs6 and im wondering if anyone in this forum has ran into the same problem as well.

I installed CS6 last week and everything worked briliantly, but this morning when i open up my premiere it's unable to playback all of my footage (Native 5D mark III h.246 and ProRes 422). Whether it is on the timeline or in the source panel. the Error message i get it this:
A Low-level exception occurred in: Adobe Player (player).

Thanks for you help.