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

kb: bug kb: fixed Plesk for Linux ext: sslit

Applicable to:

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

Product issue:

#EXTSSLIT-1871 "If nginx is disabled, it is no longer possible to start securing a domain with the “Forwarding” hosting type (because this scenario is not supported and is bound to fail)."
Fixed in:
- SSL It! 1.9.10 10 February 2022

Please consider updating your server:

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

workaround