When making an in-app purchase in any app, a message immediately appears that says "An error occurred during this purchase." How do I fix this?

What should happen:

> Presses the button to make purchase in the app (i.e "Buy 800 Robux for $9.99")

> Processing purchase...

> Prompted to type in my password to my Apple ID

> Types Apple ID password

> Processing purchase...

> Purchase complete.

What happens instead:

> Presses the button to make purchase in the app (i.e "Buy 800 Robux for $9.99")

> Message appears that says "An error occurred during this purchase. Please try again later."

Things I tried to fix this:

> Deleted and inserted payment information. Payment info is fully updated.

> Reset device (iPhone SE)

> Checked for updates (iOS is updated).

> Waited 24 hours and issue continues to occur.

> Tried purchases on other apps (consistent with most apps but not all)

> Checked email for notices from Apple (no notices).

If anyone has had this issue before, could you provide a solution if you found one?