Free SSL on Profreehost (Let's Encrypt, sslforfree.com)

How do you set Free SSL for Profreehost (Letsencrypt, sslforfree.com) Is there a video tutorial?

Domain "idthemeseo.net" challenge3 failed. Response from "https://acme-v02.api.letsencrypt.org/acme/chall-v3/678354701/miCgEg" was:

Warning: Your verification URL is not returning the correct contents to our verification servers. The URL looks like it is blocking bots and which inadvertently blocks our servers from receiving the correct content. Contact your host, a professional developer or admin for further help with fixing it.

Error: DNS problem: NXDOMAIN looking up TXT for _acme-challenge.idthemeseo.net

Full Error: { "type": "dns-01", "status": "invalid", "error": { "type": "urn:ietf:params:acme:error:dns", "detail": "DNS problem: NXDOMAIN looking up TXT for _acme-challenge.idthemeseo.net", "status": 400 }, "url": "https://acme-v02.api.letsencrypt.org/acme/chall-v3/678354701/miCgEg", "token": "nyPLUJhiW-w4KIjoeDZ-C23mvOfWd7q9kqVYiK1JdbE" }