There's a simple way to fix this:
1. Download PSNLover
2. Extract the files to SEPLUGINS
3. Rename psnlover.prx to psnfucker.prx
4. Change the vsh.txt and game.txt files so that they read "ms0:/SEPLUGINS/psnfucker.prx 1" (without quotations)
5. Continue using PSNLover as if it was really named PSNFucker.