Hello.
We understand. In that case, assuming the issue isn't with the website or the content itself, try these steps when any app you may notice this with:
1. Force the app to close. Then open the app to see if it works as expected.
2. Restart your iPhone. Then open the app to see if it works as expected.
3. To see if updates are available for the app, open the App Store, tap your profile icon, then scroll down to see if updates are available. If updates aren't available for the app, update the software on your iPhone.
4. Delete the app. When you do this, you might lose data that was stored in the app. Then redownload the app. Then check to see if the problem with the app is fixed.
5. If you still need help, you can use these steps to locate the contact info for the App Developer: How to contact an app developer
Otherwise, if issues persist, then you may need to have your device serviced. If that's the case, contact Apple Support or make an appointment at your closest Apple Authorized Service Provider: Find Locations.
We wish you the best of luck!
Take care.