To resolve the issue of the TBN+ screen not opening for you to sign in, follow these detailed steps:

1. Force Quit the App: If the TBN+ app is running but not opening properly, force quit the application. On your Mac, you can do this by pressing Command + Option + Escape, selecting the TBN+ app from the list, and clicking on "Force Quit."

2. Reopen the App: After force quitting, try to open the TBN+ app again from your applications folder or dock.

3. Check Internet Connection: Ensure that your device is properly connected to the internet. You can check this by trying to load a different website or app.

4. Log Out and Log Back In: If you are able to get to the app but it’s not fully loading, attempt to log out (if applicable) and then log back in. This can sometimes refresh your session and resolve loading issues - learn more.

5. Restart Your Device: A simple restart can fix many issues. Restart your Mac and try to open the TBN+ app again.

6. Update the App: Make sure that your TBN+ app is updated to the latest version. Check the App Store for any available updates.

7. Clear Cache: If you're using TBN+ through a browser, you may need to clear your cache. Go to your browser's settings and find the option to clear browsing data.

8. Reinstall the App: If the problem persists, uninstall the TBN+ app and then reinstall it from the App Store.

9. Troubleshooting Resources: For further assistance, visit the TBN+ customer support page for detailed troubleshooting steps - learn more.

If none of these steps resolve the issue, reaching out to TBN+ customer support may be necessary for direct assistance.