I tried the "Try it out" section and set up the prebuilt docker container and tried to run it. Whenever I upload a video to generate captions I get the following error - "Request Failed: Request Failed! Exception caught while generating caption"
Okie! Video with/without subtitles shouldn't matter :/.
I guess it will be difficult to reproduce this now.
Just in case if you give it another try and faces the same issue, can you please create the issue again.
Thanks!