I'm sorry that your post hasn't received a reply yet! Are you still looking for assistance with this?
I did a bit of research myself and found that we use Cloudflare CDN and all of our Cloudflare zones have DNSSEC enabled by default. This means that from our end, DNSSEC is configured correctly.
Could you tell us a bit more about the error you're experiencing? It'd be great if you can share screenshots as well. Thank you!