Simple Coming Soon blank page.
If you tried to go to olio-maestro.myshopify.com but came to this page, then for this may be the following reasons:
1. You deleted the app, but did not deactivate it.
1.1. Reinstall the app.
1.2. Go to the app settings page.
1.3. Untick the 'Activate coming soon page' checkbox.
1.4. Save changes.
2. You did not approve the app charge.
2.1. Go to the app settings page.
2.2. Click the green button 'Activate'.
2.3. Click 'Approve charge'.