Adding URL for online subtitle
 

how to add a URL for the online subtitle checker ???

You can't.
Subtitle site must run a dedicated script.

Can you please explain the answer?
I think it is saying that the user can do nothing for the errors encountered in automatically searching for subtitles? is that correct.
If that is true, it would save a lot of time here. :-)
Here. on july 14, 2020, running release 2.75, i get error messages trying to access "bs-subtitles" and "open subtitles"