Php with Nginx - 403 Forbidden

I want to run project yii2(advanced template) with nginx. I use virtualbox with vagrant(ubuntu 16.04, php 5.6)

I have following setting nginx file

//

vhost1.conf
server {
   listen                *:80;

   server_name  frontend.test;
   client_max_body_size 128m;

   root /var/www/frontend/web/;
     index index.php;

   access_log            /var/log/nginx/vhost1.access.log;
   error_log             /var/log/nginx/vhost1.error.log;
   location / {
     try_files $uri $uri/ /index.php$is_args$args;
   }

   location ~ ^/assets/.*\.php$ {
       deny all;
   }

   location ~ \.php$ {
     include fastcgi_params;
     fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
     fastcgi_pass 127.0.0.1:9000;
     #fastcgi_pass unix:/var/run/php5-fpm.sock;
     try_files $uri =404;
   }

   location ~* /\. {
     deny all;
   }
 }

I have following structure project with permission:

vagrant@machine1]-[/var/www]-[git master] 
$ ls -la frontend/
total 68
drwxrwxr-x 1 vagrant vagrant 4096 Jul  5 14:27 ./
drwxrwxr-x 1 vagrant vagrant 4096 Jul  9 16:14 ../
drwxrwxr-x 1 vagrant vagrant 4096 Jul  5 14:27 assets/
drwxrwxr-x 1 vagrant vagrant 4096 Jul  5 14:27 bootstrap/
drwxrwxr-x 1 vagrant vagrant 4096 Jul  5 14:27 components/
drwxrwxr-x 1 vagrant vagrant 4096 Jul  5 14:27 config/
drwxrwxr-x 1 vagrant vagrant 4096 Jul  5 14:27 controllers/
drwxrwxr-x 1 vagrant vagrant 4096 Jul  5 14:27 data/
drwxrwxr-x 1 vagrant vagrant 4096 Jul  5 14:27 helpers/
drwxrwxr-x 1 vagrant vagrant 4096 Jul  5 14:27 messages/
drwxrwxr-x 1 vagrant vagrant 4096 Jul  5 14:27 models/
drwxrwxr-x 1 vagrant vagrant 4096 Jul  5 14:27 modules/
drwxrwxr-x 1 vagrant vagrant 4096 Jul  5 14:27 runtime/
drwxrwxr-x 1 vagrant vagrant 4096 Jul  5 14:27 validators/
drwxrwxr-x 1 vagrant vagrant 4096 Jul  5 14:27 views/
drwxrwxr-x 1 vagrant vagrant 4096 Jul  5 14:27 web/
drwxrwxr-x 1 vagrant vagrant 4096 Jul  5 14:27 widgets/

nginx error logs output:

2018/07/09 21:42:36 [error] 23865#23865: *1 directory index of "/var/www/frontend/web/" is forbidden, client: 192.168.56.1, server: b2bfrontend.test, request: "GET / HTTP/1.1", host: "b2bfrontend.test"

If i run b2bfrontend.test i get error - 403 Forbidden