Rootkit Log Problems Possibly

[Cube]

Code:

/var/log/chkrootkit.log:
  /bin/sh: root: command not found

But this looks like cron already tried to run chkrootkit. Is your ispCP already running for more than a day? You can try to run the relevant commands from the crontab /etc/cron.d/ispcp manually.
If this does not work, tell us your ispCP version and post the tab.