Does anyone know how to solve this issues.
When I try to get SSL with Letsencrypt I got this message.
I had domain name on linode and I've deleted, after sometime I want it to create a new site on same Linode but when I want it to create I got this error.
On this Linode I had it two domains on Nginx server.

IMPORTANT NOTES:

• The following errors were reported by the server:

  Domain: www.domain1.tld
  Type: unauthorized
  Detail: Invalid response from
  https://domain22.tld/.well-known/acme-challenge
  /rm9rtq7vBjnQtJlQCAoqOrF6n-ddn9FsH4wt4PT6guI
  [IPV6 address]: "\r\n<title>404 Not Found</title>\r\n\r\n

  <center>

  404 Not Found

  </center>\r\n

  ---

  <center>"

  Domain: domain1.tld
  Type: unauthorized
  Detail: Invalid response from
  https://domain2.tld/.well-known/acme-challenge
  /2eWKxL5jAp3NtIlJjiLX3RKPYblf6QlaeEWHPc6mdl4
  [OPV6 address]: "\r\n<title>404 Not Found</title>\r\n\r\n

  <center>

  404 Not Found

  </center>\r\n

  ---

  <center>"

  To fix these errors, please make sure that your domain name was
  entered correctly and the DNS A/AAAA record(s) for that domain
  contain(s) the right IP address.

  </center></center>

Thanks for help.