it can be done using txt file or database. Just create a resource as db or lines from file . Now use PARSE LINE option in TOOLS .Parse in same order as data in txt file or db . Ex user,pass,email,cookie etc. Untick Reuse Resource will make load new line every time you parse.
Try printing ( with log) the command you are trying to execute, run it in a seperate command line to see if it's working properly.
since it's related to input I am suspecting the problem is with the youtube url you are providing