Since yesterday, the VLsub returns 401. I registered for a free account, but the downloaded subtitles had only ads in them, asking to "upgrade" to VIP.

Apparently they changed their policy recently, and now they're asking for $20/year (for VIP).

Also Related (2023): https://news.ycombinator.com/item?id=38289582 - Saying Goodbye to OpenSubtitles.org API