sorry man don't know anything about cfw =( since I'm on ofw
many error can occur for your resigning error. do you have the correct account id , keys entered correctly , if everything is correct then it might be a framework problem and need to reinstall or a visual c ++ and need to reinstall also . I have a quest can you run the pdftool in the save resigner folder ?? do you get error msvr1.dll is missing ?????
heres a tutorial I made
Ps3 save resigner tutorial - YouTube