Add a custom domain to AWS Amplify react-app

Hi all!
I've successfully built my react-app with AWS Amplify (step 1 is completed)
Now I need to add a custom domain that I already own (purchased not with aws route 53).
What I've done:

1. I hosted a zone with my domain name using Route 53.
2. I changed my domain's DNS-servers to given by Route 53 four name servers under "Value/Route traffic to" (step 2 is now marked as completed in amplify console)
3. Before I did this, when I entered my domain name into the browser I could see a message "This domain was purchased from companyname" and their logo.
4. Now DNS records seem to have changed, but domain stopped working.. Google Chrome says: "This site can’t be reached. DNS_PROBE_FINISHED_NXDOMAIN"

Edited by: MikhailOG on Jan 17, 2021 11:24 PM
I managed to make it work adding a subdomain (CNAME record route 53). But root domain still doesn't work.. Amplify says I need to add an ANAME record to the root. Route 53 added type A record to the root when I added root URL to amplify. But I can only access my web page using subdomain.