All Laravel routes gives 404 on nginx subdirectory - nginx

Question

I have a problem with nginx configuration. I wanna have Laravel app in subdirectory, exactly domain.com/alfa. At domain.com is another app. And now all Laravel routes gives 404 on nginx subdirectory. Could someone help find an error?
My paths:
/var/www/ <-- it's for domain.com
/var/www/alfa_path <-- it's for domain.com/alfa
It's my nginx configuration:
server
{
listen 80;
server_name domain.com;
root /var/www;
index index.php index.html index.htm;
location / {
}
location /alfa {
root /var/www/alfa_path/public;
index index.php index.html index.htm;
try_files $uri $uri/ /alfa_path/public/index.php?$query_string;
}
location ~ .php$ {
try_files $uri =404;
fastcgi_pass unix:/var/run/www.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include /etc/nginx/fastcgi_params;
}
location /phpmyadmin {
root /usr/share/;
index index.php index.html index.htm;
location ~ ^/phpmyadmin/(.+\.php)$ {
try_files $uri =404;
root /usr/share/;
fastcgi_pass unix:/var/run/www.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include /etc/nginx/fastcgi_params;
}
location ~* ^/phpmyadmin/(.+\.(jpg|jpeg|gif|css|png|js|ico|html|xml|txt))$ {
root /usr/share/;
}
}
location /phpMyAdmin {
rewrite ^/* /phpmyadmin last;
}
}