Facebook reviewer found that my Instant Game could not be clicked and redirected to the Instant Games homepage. However, I had already deleted Instant Games in the app settings and there was no URL. I cannot delete this URL. How can I delete it? Here are the reviewer's suggestions.

During our review, the URL of your Instant game platform doesn't redirect us to instant game app. To conclude our review. please update the URL for the platform and ensure that it will redirects to a working URL. Please follow these steps: 1.) Go to: https://developers.facebook.com/ 2.) Access your App from My Apps menu 3.) Go to Settings-> Basic 4.) Scroll all the way down to update platform for Instant Games 5.) Make sure you Save Changes. If you have any questions, please feel free to reach out. Thank you for your cooperation!