Hi, @madleo. There are conflicting NETLIFY and NETLIFYv6 type DNS records for this domain here (and this link only works when logged into your team at Netlify):
If you delete the NETLIFY and NETLIFYv6 records the CNAME record will start working. If it does not, delete it and recreate it. If it still doesn’t work, please let us know.
We have a support guide with more information about these record types here: