1: the i can guess that the ha$h you get is from a FAKE site which shows some magic for free and then says you need to pay todecode the hash

DONT WASTE YOUR TIME
fb databases are REALLY secured that it is really a very low possibility that this kinda of bug exists
simply there are on any fb hacking tools/software/scripts or ANY automated processes

you just have to do it by yourself and i dont think that this forum is suitable to discuss those kindda things