It seems you're running Virtuozzo 3 or OpenVZ. In order to read the VPS stats
(beancounters) you need a small 'helper' app. To install it do the following at
a shell prompt as root:

[root@vps] wget http://www.labradordata.ca/downloads/install_beanc.sh
[root@vps] sh install_beanc.sh