Unable to issue a Let's Encrypt certificate for domain with forwarding hosting type when nginx is not installed and/or disabled on the Plesk server

Symptoms

• Forwarding hosting type is set for the domain in Plesk > Domains > example.com > Hosting & DNS tab > Hosting Settings.

• When trying to issue a Let's Encrypt certificate in Domains > example.com > SSL/TLS Certificates, the following error is provided:

  CONFIG_TEXT:Could not issue a Let's Encrypt SSL/TLS certificate for example.com.
  The authorization token is not available at http://example.com/.well-known/acme-challenge/vjcxCwV74PbWUvnMTT2o5MeWP8z0rg054SP_IfIYfXg.
  To resolve the issue, make sure that the token file can be downloaded via the above URL.
  Details
  Invalid response from https://acme-v02.api.letsencrypt.org/acme/authz-v3/76408809540.
  Details:
  Type: urn:ietf:params:acme:error:unauthorized
  Status: 403
  Detail: Invalid response from https://example.com/.well-known/acme-challenge/vjcxCwV74PbWUvnMTT2o5MeWP8z0rg054SP_IfIYfXg

Cause

Resolution

Workaround

If update is not possible for some reason you may try the following