I don't get tokens anymore

Not enough information. Please open a new thread with a more detailed description, including what @rosiecar mentions:

If you are unable to or have stopped seeing Brave Ads, please read through the following posts first to ensure that basic troubleshooting steps are checked:

After reading the above, if you’re still having trouble viewing ads, please answer the following:

Are you able to receive general desktop/push notifications?
You can test this by visiting https://www.bennish.net/web-notifications.html and forcing a push notification to appear.

Are you in a supported region (if so, which one)?
Check https://brave.com/transparency and confirm that you are in an applicable region

Give us a brief description of the ads behavior you’re seeing

What OS/Brave version are you using?
Please copy/paste the top 3 lines of your brave://version page