Serious PS3 error occurred after switching to Rebug CFW
I have an 80GB BC PS3 that was running kmeaw 3.55 until a couple weeks ago. I installed the most recent Rebug to use ReactPSN, and everything was running fine. Then, last night, I wanted to spoof a higher firmware so I could play Chrono Cross. I downloaded the 4.0 spoofer and installed it, and then went into the Rebug Selector and hit L1+Circle, to enable Rebug Mode.
Now the system displays "A Serious Error has occurred" on a red screen. I've turned it off and on a couple times, and every so often it will take longer for the error to occur, but I haven't been able to get past it.
Is there anything I can do to get my system up and running again? I don't even care if I lose data or my CFW, I just want to be able to use the PS3 again.