Hi there! I see you're getting a message that says the OXYGEN app needs re-authentication. To make sure I guide you correctly, could you please tell me when this message appears? For example, is it when you open the app, try to watch a show, or after some time using it? Also, are you logged in using a cable or satellite TV provider account?

Meanwhile, here’s a general way to handle re-authentication on the OXYGEN app on your iPhone running iOS 18.5:

1. Log Out and Log Back In:
- Open the OXYGEN app.
- Go to the account or settings section.
- Log out of your current session.
- Close the app completely (swipe it away from the app switcher).
- Re-open the app and sign in again with your TV provider credentials (username and password). This step verifies your subscription and usually resolves re-authentication prompts.

2. Check Your TV Provider Login:
Make sure your login credentials for the cable or satellite provider are up to date and active. Sometimes expired or changed passwords cause re-authentication requests.

3. Update the App:
Ensure the OXYGEN app is updated to the latest version from the App Store. An outdated app can sometimes cause authentication issues.

4. Restart Your iPhone:
Restarting can clear temporary glitches affecting the app.

If you’ve tried these or if the prompt persists after re-logging in, please let me know. We can explore some more advanced steps or check if there’s a server-side issue affecting your account.

Are you able to try these and let me know how it goes?