I downloaded PhpMyAdmin a while ago and am having a hard time getting it to work. Requesting localhost/phpmyadmin gives a 500 Internal Server Error response, but there's nothing in the error log.

These are the steps I did:

1. Downloaded the newest phpmyadmin and unzipped all the files to /var/vhosts/phpmyadmin/www/
2. Created a new php5-fpm pool and a server block on nginx
3. Changed the owner of all the files inside phpmyadmin/
4. Tried requesting localhost/phpmyadmin and localhost/phpmyadmin/setup

The phpmyadmin is running inside a chroot, and all the files are owned by www-data so it shouldn't be a permission error.

I made a new php file in the same directory to produce an error and it logs just fine so it has to be just phpmyadmin.

Here's my php5-fpm pool:

[phpmyadmin]
listen = /var/vhosts/phpmyadmin/tmp/.php.sock;
user = www-data
group = www-data

chroot = /var/vhosts/phpmyadmin/
chdir = /

php_admin_value[error_reporting] = E_ALL
php_admin_value[error_log] = error.log
php_admin_flag[log_errors] = on
php_admin_flag[display_errors] = on

php_value[session.save_handler] = files
php_value[session.save_path] = /tmp

And Nginx server block:

server {
        listen   80;
        root /var/vhosts/phpmyadmin/www;
        server_name pma.domain;

        location / {
                try_files $uri $uri/ /index.html;
                autoindex on;
        }

        location ~ \.php$ {
                fastcgi_split_path_info ^(.+\.php)(/.+)$;
                include fastcgi_params;
                fastcgi_pass unix:/var/vhosts/phpmyadmin/tmp/.php.sock;
                fastcgi_param SCRIPT_FILENAME /www$fastcgi_script_name;
                fastcgi_param PATH_INFO $fastcgi_script_name;
                fastcgi_param DOCUMENT_ROOT /www;
        }

    index index.html index.htm index.php;
    try_files $uri $uri/ =404;

}

Any ideas what could be wrong? Why is it not producing any errors even though I've forced them to be on?