After enabling that you can go to the next step.
2: In your App src>services open config.ts in sublime or notepad or any editor of your choice. Go to line 90 and check whether the value for wallet is set to true. if it is set to false, just change it to true.
Once that is done you can check your app. If you see an error message "Please contact admin to enable wallet products" don't worry.
This is a common error if you haven't added valid product details.