Routing doesn`t work - Symfony app

Hi,

I am trying to deploy my Symfony app to the Digital Ocean. The problem is with routing - the app cannot find my annotation routes in the Controller, so on requesting http://104.248.16.246/ the response is default Symfony homepage.

My dev.log is :

request.ERROR: Uncaught PHP Exception Symfony\Component\HttpKernel\Exception\NotFoundHttpException:                                                                                                       "No route found for "GET /"" at /var/www/coinwatch/vendor/symfony/http kernel/EventListener/RouterListener.php line 136                                                                                                                     {"exception":"[object (Symfony\\Component\\HttpKernel\\Exception\\NotFoundHttpException(code: 0): No route found for \"GET /\" at /var/www/coinwatch/vendor/symfony/http-kernel/EventListener/RouterListener.php:136)\n                    [previous exception] [object] (Symfony\\Component\\Routing\\Exception\\NoConfigurationException(code: 0):  at /var/www/coinwatch/vendor/symfony/routing/Matcher/Dumper/CompiledUrlMatcherTrait.php:182)"} [] 

I have been following this guide https://www.digitalocean.com/community/tutorials/how-to-deploy-a-symfony-4-application-to-production-with-lemp-on-ubuntu-18-04

My source code (app is working correctly on my localhost) [https://github.com/holesa/coinWatch]

Here is my server block config file

server {
    listen 80;
    listen [::]:80;

    server_name coinwatch 104.248.16.246;
    root /var/www/coinwatch/public;
    index index.php;
    client_max_body_size 100m;

    location / {
        try_files $uri $uri/ /index.php$is_args$args;
    }

    location ~ \.php {
        try_files $uri /index.php =404;
        fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param SCRIPT_NAME $fastcgi_script_name;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_index index.php;
        include fastcgi_params;
      }

    location ~ /\.(?:ht|git|svn) {
        deny all;
    }
}

On command

php bin/console debug:router 

it returns no routes

Thanks in advance.