Metal Gear Solid: Peace Walker - ULUS10509

[manpax]

hi, i am new at jpcsp and playing mgs peace walker , it is working very well but i have a problem with saving, i can not save the game, give me a message box it says "Save Data does not exist, please insert a memory stick". there is not any error on concole, what can i do ? i use jpcsp release 2732