Super Robot Taisen Z Hakai-hen not working?

My PSP is a PSP-3000 with 6.35 Pro-B7 cfw. When I started the game, after the game boot screen, the screen goes black and returns to the XMB with an error board "The game could not be started. (800200D9). How can I fix this problem? I really want to play this game. Thanks a lot.