This can be due to various reasons. Please first try the following:
1. Clear your browser's cache/cookies, close your browser, and re-open.
2. Disable any adblocks, antivirus, and browser plugins.
3. Ensure you have a stable internet connection.
4. If you are on the BeatStars mobile app, please try clearing the app's cache and also ensure you are updated to the latest app version from the app store.
NOTE: If your issue persists after trying the above solutions, please contact firstname.lastname@example.org