https error

To stop this, you basically just need to have a catch-all rule. Since you're dealing with HTTPS, you need a certificate/key to be able to return something other than the ONE rule you have for 443 port.

server {
    listen 80 default_server;
    #listen [::]:80 default_server; // uncomment for IPv6

    return 444;
}

server {
    listen 443 ssl http2 default_server;
    #listen [::]:443 ssl default_server; // uncomment for IPv6
    ssl_certificate /etc/nginx/cert/some_self_signed_thing.crt;
    ssl_certificate_key /etc/nginx/cert/some_self_signed_thing.key;

    return 444;
}

@ bashy :- where do i put this code...? in .htaccess..?

@arif Well since you haven't stated what web server software you're using, I can't say.

@bashy i m hosting laravel application in justhost shared server (linux). php apache. Is this enough ...?

@arif Then you will just need to do the same within the Apache vhost file. If you have trouble doing so, ask their support.