Fraudulent Website Warning Unavailable

Why is my fraudulent website warning (settings-safari) greyed-out? I received a ‘you’ve been hacked pop up’ which I ignored and promptly cleared my browsing history and restarted, but when I went to check this feature out (for the first time) it is in grey and won’t let me turn it on or off. I’m not sure if the attempted hack has anything to do with it. How can I make sure this isn’t related to the attack and turn it back on!

Here’s a photo: