A PayPal payment failure with a "422" error code typically indicates an "Unprocessable Entity" issue, meaning the payment information you provided is not valid or has a problem that needs to be corrected before the transaction can be processed; this could be due to issues with your card details, billing address, or potential limitations on your PayPal account.
First I am not selling 3D model or distributing 3D model. If you notice it's a review of apk file of environment work created on Coppercube. Before you say authorize means distributing 3D models, if you download the file you would not see any 3D model files. But thank you for your comment.
