There is a missing word in your interface with an error about a DNS entry.
Please read through the following very slowly; it's in the 4th line. It used to link to the point in virtualmin that one would correct the issue, and now is missing.
Checking Configuration The status of your system is being checked to ensure that all enabled features are available, that the mail server is properly configured, and that quotas are active .. Your system has 31.40 GB of memory, which is at or above the Virtualmin recommended minimum of 256 MB.
Virtualmin is configured to setup DNS zones, but this system is not setup to use itself as a DNS server. Either add 127.0.0.1 to the , or turn off the BIND feature on the page.
.. your system is not ready for use by Virtualmin.