the error drives me crazy

[kungno]

I have been played the game FAIRY TAIL ゼレフ覚醒 for couple days, sadly an error made me unable to continue, here's the information of the console:
CPC_FileMana E[fileSys] : FileSystems\ISOFileSystem.cpp:323 File /PSP_GAME/USRDIR/disc/Ark/book/BOK_book00.ark not found
CPC_FileMana E[IO] ：HLE\scelo.cpp:1783 ERROR_ERRNO_FILE_NOT_FOUND=sceIoOpenAsync(disc0:/PSP_GAME/USRDIR/disc/Ark/book/BOK_book00.ark, 00000001, 000001ff) - file not found

I sincerely hope someone can help me work out this problem, thanks. ~~~~(>_<)~~~~