Cannot import with youtube

Hello, for the past few days I have not been able to import lessons with YouTube, it systematically gives me the error message. I use an iPhone 8 Plus and an iPad Pro 11.

yet I uninstalled and reinstalled the application and also changed device

https://static.lingq.com/media/resources/forum_post/media/96D415BE-BD75-49E0-A43F-9A00DD497C42.jpeg
https://static.lingq.com/media/resources/forum_post/media/1046B394-0A27-4C50-8650-70D9016C3D97.jpeg

Can you please provide URL for one of the videos you were unable to import? Are you sure that the subtitles are available in your study language?