just uploaded and installed the script on pussymania.org

was trying to upload a video to test and im getting

Code:
Fatal error: Class 'ffmpeg_movie' not found in /home/pussyman/public_html/include/classes/class.video_duration.php on line 54
line 54 of said file reads

Code:
$output = new ffmpeg_movie($video);
what is wrong and how do i fix it . . .