Nginx multidomain proxypass

Hello guys,

Im trying to setup proxypass on my nginx reverse proxy but I can not figure out how to set it up :/ Because our clinet dont want to use * cert for these domains I have to use Lets Encrypt.
My goal is to proxypass only www.mydomain.com and mydomain.com to some internal server for ex. http://www.infra/
mydomain.com works fine but if i try www.mydomain.com it can not find a virtual host "Unknown virtual name"


Here is my current config for mydomain.com on nginx proxy:

server {
listen *:80;

listen *:443 ssl;
ssl_protocols TLSv1.2;
ssl_ciphers 'ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384HE-RSA-AES128-GCM-SHA256HE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHAHE-RSA-AES128-SHA256HE-RSA-AES128-SHAHE-RSA-AES256-SHA256HE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHAES-CBC3-SHA:!DSS';
ssl_prefer_server_ciphers on;
ssl_certificate /var/www/clients/client1/web84/ssl/mydomain.com-le.crt;
ssl_certificate_key /var/www/clients/client1/web84/ssl/mydomain.com-le.key;

server_name mydomain.com www.mydomain.com;

root /var/www/mydomain.com/web/;

if ($scheme != "https") {
rewrite ^ https://$http_host$request_uri? permanent;
}


index index.html index.htm index.php index.cgi index.pl index.xhtml;



error_page 400 /error/400.html;
error_page 401 /error/401.html;
error_page 403 /error/403.html;
error_page 404 /error/404.html;
error_page 405 /error/405.html;
error_page 500 /error/500.html;
error_page 502 /error/502.html;
error_page 503 /error/503.html;
recursive_error_pages on;
location = /error/400.html {

internal;
}
location = /error/401.html {

internal;
}
location = /error/403.html {

internal;
}
location = /error/404.html {

internal;
}
location = /error/405.html {

internal;
}
location = /error/500.html {

internal;
}
location = /error/502.html {

internal;
}
location = /error/503.html {

internal;
}

error_log /var/log/ispconfig/httpd/mydomain.com/error.log;
access_log /var/log/ispconfig/httpd/mydomain.com/access.log combined;

location ~ /\. {
deny all;
}

location ^~ /.well-known/acme-challenge/ {
access_log off;
log_not_found off;
root /usr/local/ispconfig/interface/acme/;
autoindex off;
index index.html;
try_files $uri $uri/ =404;
}

location = /favicon.ico {
log_not_found off;
access_log off;
expires max;
add_header Cache-Control "public, must-revalidate, proxy-revalidate";
}

location = /robots.txt {
allow all;
log_not_found off;
access_log off;
}

location /stats/ {

index index.html index.php;
auth_basic "Members Only";
auth_basic_user_file /var/www/clients/client1/web84/web/stats/.htpasswd_stats;
}

location ^~ /awstats-icon {
alias /usr/share/awstats/icon;
}

location ~ \.php$ {
try_files /4c632487bc4f297eaf8b10538547e380.htm @php;
}


location @php {
deny all;
}




location / {

proxy_pass_header Authorization;
proxy_pass http://www.infra/;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_http_version 1.1;
proxy_set_header Connection "";
proxy_buffering off;
client_max_body_size 0;
proxy_read_timeout 36000s;
proxy_redirect off;
proxy_ssl_session_reuse off;

}



}