Attempting to add CNAME to xxx.xxx which already had existing records

This error occurs when you want to add a CNAME for the whole domain

This solution can be used only with Artica 4.30 Service Pack 973 or Artica v4.40

When you try to create a CNAME of the main domain ( by using the “star” ) as Name:

You receive the following error:

Because, you already have a record A for that domain.
To fix this issue, you have to use the record “ALIAS”