Kang King Kung

hi I get an error like this why? f269a.js?250bc:84 Uncaught TypeError: Cannot read property 'setRemoteDescription' of undefined at h.signal (f269a.js?250bc:84) at c._onAnnounceResponse (f269a.js?250bc:84) at c._onSocketData (f269a.js?250bc:84) at l._onSocketDataBound (f269a.js?250bc:84) at...

Error: FFMPEG process for bitrate exited bitrate with status code 141

1

beforehand thanks this is a really great tool, however in some files I experience errors Error: FFMPEG process for bitrate exited bitrate with status code 141 that why? and how...