No. In the first step when being logged in on a new AIO instance, you should have seen an input field for your domain that you need to put in there. The instance restore section is only for the case that you want to restore a former AIO instance. Please start all over again by following GitHub - nextcloud/all-in-one: Nextcloud AIO stands for Nextcloud All In One and provides easy deployment and maintenance with most features included in this one Nextcloud instance.