Unable to access https even though website is on whitelist
From what you described, it does not seem like the website is blocked, but rather the browser is blocked, because website blocking does not require email/password. You basically get a Blocked by Funamo webpage. So my best guess is that you may have opened the same site with other browsers before and it tries to open the same site with that browser. If you have Block other browsers option enabled, you will get Fuanmo login page. Please see this question for more details and clear your default to see if it helps.