So it's possible to block sites through HostWatch. However, if this has been done by accident and a long period of time given to block, how do we unblock it please?
Open Firebox System Manager, go to the Blocked Sites tab, highlight the blocked site and click the delete button on the lower right corner.
Enter your admin password when prompted to delete the blocked site.
It's usually something simple.
It was indeed something simple! Shazam! Rules removed! Thank you very much for your help!