Website used to work now stopped working because Norton puts it in a different category

My daughter uses Canvas for her schoolwork. She never had problems before. Today, everything stopped working because all the links to Canvas were changed to the “Social Networking” category that I normally blocked during the school hours. Why did Norton suddenly change the categories from “Educational” to “Social Networking”? Is there a way to change it back? I don’t want to unblock the whole category just because of one page.

Hi Wenjun_Woodward

Sorry for the inconvinience caused.
Could you please let us know the exact website URL which is getting blocked, we shall analyze further and get back.

Thanks
Norton Family Team