Problem with Youtube.. video is not available.. it asks for a G suit account?

Hello, yesterday I moved from Google Firefox to Brave… But in my You tube account some video’s are shown and others are not. In that case I get a mention of ‘video not available, log in with a G-suit account’. I did and do not have this problem in other Google browsers. Can you help me? Thanks!

Duplicate Problem with Youtube.. video is not available.. it asks for a G suit account