A fatal issue occurred during the DNS lookup process for uptime.rejsemus.dk/A.
DNS response for uptime.rejsemus.dk/A did not have an acceptable response code: SERVFAIL
A fatal issue occurred during the DNS lookup process for uptime.rejsemus.dk/AAAA.
DNS response for uptime.rejsemus.dk/AAAA did not have an acceptable response code: SERVFAIL
A fatal issue occurred during the DNS lookup process for uptime.rejsemus.dk/CAA.
DNS response for uptime.rejsemus.dk/CAA did not have an acceptable response code: SERVFAIL
No valid A or AAAA records could be ultimately resolved for uptime.rejsemus.dk. This means that Let's Encrypt would not be able to connect to your domain to perform HTTP validation, since it would not know where to connect to.
No A or AAAA records found.