Sometimes when the Hub blocks websites that are encrypted (denoted by “https” in the website URL) the web browser will display a message that reads “Your connection is not private” rather than show the standard Securly block page.
Do not worry as the end result is the same, your child will be unable to access the site.
Please note that the wording in the “Connection not private” message might be different based on the browser (i.e. “Not using a secure connection”, etc.).