@Subman I tried again and again.
I just tried to upload just one subtitle. It was OK, no problem occured. But, I tried with "Season Pack" again, then I couldn't make it. (Same message on the page.) I think there is a problem with multiple subtitle files. Just one srt file: OK, but more than one srt file: NOT OK.
As I wrote before, today (10/10/2022 12:15 PM) I uploaded a season pack for a tv series. But, ten minutes later, I couldn't make it.
https://subscene.com/subtitles/wreck-first-season/english/2904262
