corsairetc - 2013-09-05

Hello,
I am using heartbeat and I want to try webmin heartbeat monitor but when I try open this modul it says:

The script to request resources from the other node (/usr/lib/heartbeat/req_resource) was not found on your system. Maybe it has not been copied into place yet, or the module configuration is incorrect.

What is that, where can I find this script.
I am using Debian 7 wheezy x64.
Tahnks for any help.