When I click on an app, it says “an internet connection is required to verify trust of the developer xxx” but my wifi is on and working. What do I do?

Hello stxphanie_.

Thanks for reaching out to Apple Support Communities. We see that you are having some trouble with accessing some apps. We will be glad to assist.

Are the apps that you are attempting to access, downloaded form the App Store or from another source like an enterprise app? If these are enterprise apps, try the following steps:

"Tap Settings > General > Profiles or Profiles & Device Management. Under the "Enterprise App" heading, you see a profile for the developer. You should have "Trust XXX" this option, if you can't verify/trust this app, you will need to contact the App Developer for the further assistance."

Install custom enterprise apps on iOS

If the apps were downloaded from the App Store, see this:

If an app unexpectedly quits, stops responding, or won’t open

Cheers.