steps to reproduce: 1. Log in to https://apps-preview-dev.allizom.org/en-US/apps/ 2. Navigate to "Payment profile" 3. Set up PayPal pre-approval 4. Try to purchase an app. Purchase is successful. 5. Cancel the pre-approval. 6. Try making a purchase again. I tried with https://apps-preview-dev.allizom.org/en-US/apps/app/marble-run-14 expected behavior: App purchase is successful. actual behavior: On clicking "Pay with PayPal", nothing happens.
As Krupa said, nothing happens first time when trying to buy an app without pre-approval, but I observed an wrongly displayed message on the screen after trying to buy same app two times. I will add a screenshot of this error.
Verified as fixed.