Can't get it to work

I have just installed OFN and have the Web settings chosen for a 10-year-old. However, no matter what I do to the settings, no web page will load. They are all blocked...everything. No matter what page address I enter, I get "Internet Explorer cannot display the webpage". Even when I change the settings or reselect different categories, the issue remains the same...ZERO access to any page. Only when I uninstall the entire program, can I get back online. This has become quite frustrating for me, since I have now spent about 3 hours on it. Can someone please tell me what I'm doing wrong? Thank you!