Chrome Security Issue

When You type "nano /var/www/your-domain-name.com/conf/nginx/ssl.conf "

You don't see the below lines ??

listen 443 ssl http2;
ssl on;
ssl_certificate /etc/letsencrypt/live/your-domain-name.com/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/your-domain-name.com/privkey.pem;