It’s impossible to verify custom domain. As it is asking for making 2 the same A-type DNS records. Moreover, it is asking to make AAAA type record without any information. How to fix it?
You have to go to the DNS zone of your domain at the provider and delete some of the A records, they seem to be duplicates. In any case you have to wait for the DNS to propagate, many times it throws an error and they are fine, it is solved later.