I bought a new VPS and I try to transfer my working ZendApp (work in previous hosting with DirectAdmin). Now i install nginx with php5 and mysql i this is my php configuration - works well

http://178.216.200.85/info.php

I turn on display errors in php.ini and it shows me error in writable /_cache/ folder soo i set it to 777 permission. Error resolved but i still have error and don't see anything in my site http://178.216.200.85/index.php

I don't have any .htaccess file

Here is my /etc/nginx/sites-avaible/default content

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

# SSL configuration
#
# listen 443 ssl default_server;
# listen [::]:443 ssl default_server;
#
# Self signed certs generated by the ssl-cert package
# Don't use them in a production server!
#
# include snippets/snakeoil.conf;

root /var/www/html;

# Add index.php to the list if you are using PHP
index index.php index.html index.htm index.nginx-debian.html;

server_name 178.216.200.85;

location / {
# First attempt to serve request as file, then
# as directory, then fall back to displaying a 404.
try_files $uri $uri/ =404;
}


location ~ \.php$ {
include snippets/fastcgi-php.conf;
fastcgi_pass unix:/var/run/php5-fpm.sock;
}

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

What i should to add or someting to run my app in new server?

Any advice will be very valuable