A fatal issue occurred during the DNS lookup process for fulmaks.com/A.
DNS response for fulmaks.com had fatal DNSSEC issues: validation failure <fulmaks.com. A IN>: No DNSKEY record from 2400:cb00:2049:1::adf5:3a33 for key fulmaks.com. while building chain of trust
A fatal issue occurred during the DNS lookup process for fulmaks.com/AAAA.
DNS response for fulmaks.com had fatal DNSSEC issues: validation failure <fulmaks.com. AAAA IN>: No DNSKEY record from 173.245.59.41 for key fulmaks.com. while building chain of trust
A fatal issue occurred during the DNS lookup process for fulmaks.com/CAA.
DNS response for fulmaks.com had fatal DNSSEC issues: validation failure <fulmaks.com. CAA IN>: No DNSKEY record from 2400:cb00:2049:1::adf5:3b29 for key fulmaks.com. while building chain of trust
No valid A or AAAA records could be ultimately resolved for fulmaks.com. This means that Let's Encrypt would not be able to to connect to your domain to perform HTTP validation, since it would not know where to connect to.
No A or AAAA records found.