Hello Haris,
Good day and thanks for using SuperPWA. When I looked at your website, I noticed that even though you’ve added the manifest within the OneSignal settings page, you have accidentally done a minor mistake over it.
Currently, you’ve added https://www.hrace009.com/superpwa-manifest.jso
to the OneSignal settings page (ie; you missed a letter n at the end of the manifest URL). It should be https://www.hrace009.com/superpwa-manifest.json
as for working perfectly with SuperPWA and also for removing our message. Hope you’ll fix it and get back to me so that I can help you further if the issue still exists over the dashboard.
Looking forward.