Sounds like a DSTTi clone...

SOMETIMES that can be fixed by backing up your files to PC and then formatting your MicroSD/HC with the Panasonic SD Formatter utility, then copying your files back.
If it still gives that error, then you'll need to wait for an updated AP Bypass file (like extinfo.dat and/or infolib.dat on the TTDS).

 

Thus I say to Google better xD, there are multiple threads that haven't gotten an answer for the AP...Of course, maybe there is a cracked rom somewhere...