Im having trouble with Google App Engine and using my own domain. I have a domain that i'm also using in Google Apps for Work. I have connected my GAE project in Google Apps so they are linked. I have added my custom domain in GAE, verified ownership and it seems to be correct.
Here is a picture of the GAE settings.

The other setting I know I have to do is on my domain registrar. I have added the records from GAE, from the picture I uploaded. Im using one.com as a domain registrar and my DNS settings look like this:
Am I doing something wrong that you can see directly like "Hey what's this guy doing lol" or does it seem correct at first sight?
Thankful for any help in the right direction.
#EDIT:
After following the tip from comment, I have verified and mapped the domain "lkpgpremiumcars.com". And added "beta" as subdomain. My "Custom domains" looks the same (like below):

I also removed A and AAAA-records and added a CNAME.
Waiting for DNS update to see if it works.
EDIT 2:
Still dont work.
BTW is it normal behavior that if I select the same subdomain again it says this:

Or is is just because it already points to this app?


