Lil'Wayne

How to fix my hacked psp?

i hacked my psp fat 2 years ago, to the specs, 3.8 m33-5. and it was running my isos fine. but a few weks ago when i started trying to play the games the screen would come with the ”the game could not be started (80020148). i checked online and it said that i needed to format my memory stick, so i did. but the same came up.
how can i solve this?