Error: Valid Billing Address Required

Since an auto-update to WordPress 5.2.1 this morning, Paypal users are getting an error “Valid Billing Address Required” after theyre re-directed back to checkout from Paypal to hit “complete” on the order.

I tried replicating the issue and i received a similar error but instead it said “Valid billing phone number required”.

In both cases all of the fields were filled out. Both required and non-required fields.

Help would be very much appreciated!

The page I need help with: [log in to see the link]