I'm trying to gift an app from the App Store, but every time I enter the gift info (recipient's email, my name, message) and try to send, I receive the following error: "Invalid Gift. You must enter your sender's email address."
I'm not really sure how to fix this issue. I read somewhere that it might be because of Apple IDs that aren't tied to email addresses, but my Apple ID is.
I'm running iOS 13.1.1 on an iPhone 8 Plus.