Can't have Wordpress websites to work with nginx on subdomain, connect() to unix:/run/php/php7.2-fpm.sock failed error

Hello, I’m using a droplet to run a couple of static websites, each on their own domains, like:

mydomain.com
otherdomain.com
thirddomain.com

and so on.

Then, I use the same droplet to test other websites (mainly Wordpress sites), using subdomains this way:

website.mydomaincom
website2.otherdomain.com
... 

For each of these I added an A record on the dns records management section in the DigitalOcean admin and then a nginx configuration file for each website like this one:

server {
        root /var/www/website.com
        index index.php index.html index.htm;

        server_name website.mydomain.com;

        location / {
                try_files $uri $uri/ /index.php?q=$uri&$args;
        }

        error_page 404 /404.html;

        error_page 500 502 503 504 /50x.html;
        location = /50x.html {
                root /usr/share/nginx/html;
        }

        location ~ \.php$ {
              include snippets/fastcgi-php.conf;
              include fastcgi_params;
              fastcgi_pass unix:/run/php/php7.2-fpm.sock;
              fastcgi_param SCRIPT_FILENAME /var/www/website.com$fastcgi_script_name;
              fastcgi_param PHP_VALUE post_max_size=20M;
              fastcgi_param PHP_VALUE upload_max_filesize=20M;
        }
}

When trying to access the url website.domain.com I get an error 404. In the logs there’s this:

2019/02/10 18:26:47 [crit] 9914#9914: *30 connect() to unix:/run/php/php7.2-fpm.sock failed (2: No such file or directory) while connecting to upstream, client: 77.11.130.163, server: website.domain.com, request: “GET /favicon.ico HTTP/1.1”, upstream: “fastcgi://unix:/run/php/php7.2-fpm.sock:”, host: “website.domain.com” 2019/02/10 18:26:47 [error] 9914#9914: *30 open() “/usr/share/nginx/html/50x.html” failed (2: No such file or directory), client: 77.11.130.163, server: website.domain.com, request: “GET /favicon.ico HTTP/1.1”, upstream: “fastcgi://unix:/run/php/php7.2-fpm.sock”, host: “website.domain.com”

I’m not sure what to do. The thing is that till a couple of days ago this setup was actually working. What I did was upgrading the certbot. In doing so I might’ve broken something without realizing it.

Thanks for your help.