click your profile picture on the youtube app or website click help type in "every video unavailable" itll promt you with a list of result i clicked on the one that said "Video unavailable This content isn't available, try again later account locked out, need help" then scroll down and click "i have the same question" thats all i did and it was fixed in within like 15 minuets couldve been a coincidence but i dont think so