Hello @Cyborg
1. In the oml you shared, the Entry screen for the application is 'Groups'.
2. Since you have set the Anonymous login on all screens so I was able to load the Groups page on your environment. So you should be able to launch the Groups page by either clicking on the following link
https://personal-ka0bbgxj.outsystemscloud.com/DynamicAccessManagementDemo/Groups.aspx
or by clicking on the following icon in Service Studio:
Screenshot showing the Entry screen set up:

3. I am guessing that you may have attempted to load the Login page and that's why you were forced to login with credentials that may have been invalid. Hope this clears up things,
Best regards,
AJ