I have purchased pro version of nextdns becuz free version was not working.. even after applying parent control filter those websites acesib

I have blocked facebook and tiktok and its blocked on my device only and the all my childs are watching and scrolling.. but i have setup my router with nextdns but its worthless till now. If anyone can help in this i'd be greatful

I have checked one of my another device it shows this but my device has a green tick and says "all good!

This device is using next dns but i have setup the router dns...