porn3dx script/ffmpeg issue?

[MonfGeiger]

so im trying to use the porn3dx script to download a video from porn3dx, and after some issues, i mostly solved it by copy/pasting the ffmpeg.exe file into the same folder as the script, but at the end, it gave me [mpeg-convert:83144] could not find output file

what am i doing wrong? how do i use the script right?