A test authorization for kloon.work.gd to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
89.135.28.99: Fetching https://kloon.work.gd/.well-known/acme-challenge/Yc0ged8o-2eDJ8dU2Fl1IV-5Q4447cQXf1e8jL4w2Ks: DNS problem: SERVFAIL looking up A for kloon.work.gd - the domain's nameservers may be malfunctioning; DNS problem: SERVFAIL looking up AAAA for kloon.work.gd - the domain's nameservers may be malfunctioning