This is an accepted solution.
Karlie here from the Shopify Support Team! What you will want to do is to log into your CrazyDomains admin or dashboard - once you've logged into your third party domain dashboard, you'll want to change your DNS settings to point to Shopify. The details that your screenshot suggests is what you're going to want to enter into your domain dashboard.
Once you change your DNS settings, it can take up to 48 hours to propagate correctly. If you're still experiencing issues after 48 hours - you will need to reach out to your third party domain provider for assistance.
I hope this has answered your question. If not, or if you have any further questions please let me know. I will be happy to help!