script checks /usr/bin/ffmpeg but ffmpeg (when following there own install guide) installs to /usr/local/bin/ffmpeg
(also it's misspelled as missing ectention instead of extension)
Issue doesn't make sense. FFMPEG is checked in path that user inputs from Website Settings & Configurations settings. There is no static checking for it. Closing now.
script checks /usr/bin/ffmpeg but ffmpeg (when following there own install guide) installs to /usr/local/bin/ffmpeg (also it's misspelled as missing ectention instead of extension)