"Cannot Connect" error message when trying to search or download App from App Store

I am not able to download or search for an App from the App Store. I have checked my iCloud account settings, iPhone settings and my MacBook settings as well as updated my to the latest software version and double checked WiFi connection. But still, when trying to search for an App, the message I receive is: Cannot Connect The page couldn't be loaded. Try Again. Retry. The Home page for the App Store does display icons and App descriptions, but any attempt to Search for an App gives me the same Cannot Connect error message. Any advice would be greatly appreciated as I am diabetic and need to download an App that connects to my glucose monitor.