Hi,
customurlscheme should be something like: moodlemobile, myapp, not an url
What are you trying to achieve here? If you just want to have the app to display your site by default you should add a new attribute in that file:
“siteurl”: “http://mysite.abc”
Please, review: https://docs.google.com/presentation/d/1HX5h7zwtay4amaY3qyLuCLfI7kQCiD9IoWuDH-lSa_0/edit#slide=id.ga20278994_0_82
Juan