As a first step that resolves many common problems, close the YouTube app or browser window and reopen it. Next, try restarting your device.
Re-download videos on brand new devices
If you recently got a new device, you'll need to re-download any videos that you want to watch. Videos are not transferred to other devices, even if you're signed in to the same account. Video downloads are specific to each device.
Check that your membership hasn't expired
Check that you're signed in to YouTube Premium
Make sure you're signed in to the Google account associated with your YouTube Premium membership:
- Try signing out and back in to the account associated with YouTube Premium.
- Check that you see the YouTube Premium logo (instead of the YouTube logo). In the YouTube mobile app or on your computer, you should see the YouTube Premium logo in the top-left corner of your app or browser.
Using YouTube on a smart TV?
- Make sure you're signed in on your TV to the account associated with your YouTube Premium membership.
- If you're casting to TV, make sure you're signed in on both the TV and the computer or device you're using.
- If you're using Google Home, make sure you're signed in to the correct account in the Google Home app.
Contact support & submit product feedback
If you're still having trouble, contact support. When contacting support, mention the following:
- Do you see an error message?
- Where does it show and what is the exact text? Include a screenshot, if possible.
Back to Troubleshoot YouTube Premium member benefits.
Settings 
and select Retry download.
in YouTube.