Hi there! I understand that you're getting an error message right in front of your username and password when trying to log into the Securus app using saved credentials on your iPhone running iOS 18.7. Let's see if we can get this sorted out together.

To get started, could you tell me:

1. Have you recently changed your password or account details?
2. Are you connected to a stable internet connection when trying to log in?
3. Have you tried logging in manually by typing your username and password instead of using the saved ones?

Meanwhile, here are a few general steps we can try to address this:

1. Double-check your credentials: Sometimes saved passwords might be outdated or corrupted. Try typing your username and password manually to ensure no typos or outdated info.

2. Clear cache and reinstall the app:
- Since you are on iOS 18.7, tap and hold the Securus app icon, then tap "Remove App" > "Delete App."
- Go to the App Store and reinstall the latest version of the Securus app. This can clear out any corrupted data causing login issues.

3. Check your internet connection: Make sure your iPhone is connected to a stable Wi-Fi or cellular network. Unstable connections can cause login errors.

4. Update your app: Sometimes an outdated app version creates login issues. Double-check in the App Store that you are running the latest Securus app.

If you have already tried some of these, please let me know which ones, and we can dig deeper. Also, have you attempted a password reset? Sometimes resetting your password can resolve login errors related to saved credentials.

Looking forward to your reply so we can get you back in smoothly!