Почему phpmyadmin выдает белую страницу?

server {
                server_name тут IP;
                error_log /var/www/log/error.log;
                access_log /var/www/log/access.log;

                root /var/www/;
                index index.php index.html index.htm;

                location ~ ^/phpmyadmin/(.+\.php)$ {

                        auth_basic "Enter password for access to phpmyadmin";
                        auth_basic_user_file /var/htpasswd;

                        root /var/www/;
                        try_files $uri = 404;
                        fastcgi_pass 127.0.0.1:9000;
                        fastcgi_index index.php;
                        fastcgi_param SCRIPT_FILENAME $fastcgi_script_name;
                        fastcgi_intercept_errors on;

                        include fastcgi_params;
                }
                location ~* ^/phpmyadmin/(.+\.(jpg|jpeg|gif|css|png|js|ico|html$
                        root /var/www/;
                }
        }