Hi, sorry I had meant to offer more information but I got distracted.
DNSSEC is tied to the name server that you are using, so setting DNSSEC based on the information from the nightly status emails or from the status page of MiaB would be incorrect since in your case you are using an external DNS provider.
If you really want to enable DNSSEC, you would need to get the details from whomever is hosting your DNS. Personally, I do not bother as it can be more problem than it is worth (as you just saw).
If you have a domain that is likely to come under attack for political or even monetary reasons I would enable DNSSEC but for the little guy that is hosting email on a VPS using MiaB … you certainly would not be doing this if you had to be concerned with someone hijacking your domain via DNS so, no reason to set DNSSEC. Again, that is my opinion though.