My server runs on a LEMP Stack Ubuntu 16.04 and last version of nginx

I already have a SSL certificate installed on my server for the following domains and subdomains : `example.com`, `domain1.example.com` and everything is working fine.

### What I try to achieve

I'd like to create a new certificate for `domain2.example.com`

To do so, I tried this command:

`sudo certbot --nginx -d example.com -d domain1.example.com -d domain2.example.com --expand`

### Error message

> 
> Cannot find a cert or key directive in /etc/nginx/sites-enabled/example.com for set(['www.example.com', '\*.example.com', 'example.com']). VirtualHost was not modified.
> 
> 
> 

### nginx config

```
server {

   # SSL configuration

   listen 443 ssl http2 default_server;
   listen [::]:443 ssl http2 default_server;
   include snippets/ssl-example.com.conf;
   include snippets/ssl-params.conf;

    root /var/www/laravel/public;
    index index.php index.html index.htm;

    server_name example.com *.example.com www.example.com ;
}

```

### Questions

What am I doing wrong ? How can I recreate the certificate to add the `domain2` ?