Unauthorized 404 Error well-known/acme-challenge on a hosting web space

I have an hosting on register.it and I think is Apache.
I’d like to upgrade the existing certificate from http to tls-sni, but I have an error

sudo certbot certonly --manual --preferred-challenges tls-sni -d controlli.eu -d www.controlli.eu
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator manual, Installer None
Cert not yet due for renewal

You have an existing certificate that has exactly the same domains or certificate name you requested and isn't close to expiry.
(ref: /etc/letsencrypt/renewal/controlli.eu.conf)

What would you like to do?
-------------------------------------------------------------------------------
1: Keep the existing certificate for now
2: Renew & replace the cert (limit ~5 per 7 days)
-------------------------------------------------------------------------------
Select the appropriate number [1-2] then [enter] (press 'c' to cancel): 2
Renewing an existing certificate
Performing the following challenges:
Client with the currently selected authenticator does not support any combination of challenges that will satisfy the CA.
Client with the currently selected authenticator does not support any combination of challenges that will satisfy the CA.

I found that the tls-sni challenge has been disabled (https://community.letsencrypt.org/t/2018-01-11-update-regarding-acme-tls-sni-and-shared-hosting-infrastructure/50188), if I am not wrong.
So could you tell me if I can upgrade my certificate and have a https secure connection for out website or not ?

Thanks
Stefano