The issue is with DNS:

"DNS query for coinsmarkets.com returned an error from the server: NameError"

(See https://centralops.net/co/DomainDossier.aspx?addr=coinsmarkets.com&dom_dns=true)

As the DNS is with Cloudflare, if it is not resolved in a couple of days it may be worth one of us contacting them to see if they can update us on the cause of the DNS issue.

Name Server: CURT.NS.CLOUDFLARE.COM
Name Server: DIVA.NS.CLOUDFLARE.COM