Safari says I have an invalid address

Did you see this message: 'Your account has been disabled in the App Store and iTunes' https://support.apple.com/en-us/HT208856. This link says: "There might be a problem with the payment method that you have on file. When you see the message, don't try to edit any of your account information. Instead, contact Apple Support for help.”

Use the Apple recommended support link above first.

And, if necessary, go here is how to contact iTunes worldwide support via text or

chat using this link https://support.apple.com/choose-country-region/itunes After

choosing your country, see the heading Tell us how we can help.

Where are you trying to download the app from? Are you sure you are trying to log into the correct web site?

Try double clicking the Home button or swipe up from the bottom of the screen and swipe Safari upwards. Go to Settings/Safari and clear History and Website Data. Open Safari and test.

Safari - Clear the history and cookies on your iPhone, iPad, or iPod touch.    

Safari website data on your iPhone or iPad - How to clear.    

Do you have access to another WiFi network where you can try? That has worked for several people.

Try a restart.

Restart your iPhone, iPad, or iPod touch         

Try a forced restart.

Reset Device.