Cannot Set Time Limits on Web Dashboard

I am trying to set up time limits for my son on the online dashboard (he is using Windows 10). When I try to set it up, nothing shows up in the window except for allowing me to turn it on and off. I have turned it on and saved it, but there are still no controls showing up. When I got to the activity section and click on Time, it says "There are no devices associated to Titus. Please install Norton Family client in the device your child uses. For instructions, please click here ." The other tracking items are functioning, but Time is not. How do I fix it. I have attached a picture of what happens in the House Rules Time section.