I have the same problem and the blocked websites are still accessible directly.
Hi @Pooya
Welcome to the Community and thanks for your post!
I am sorry that you're having problems with Parental Controls. I have moved your post to start your own thread discussion as the thread you had posted on has already been marked as solved.
The Community aren't going to be able to help with this, we'll need to pick this up from here. I have sent you a private message with instructions on how you can send us over your details and we'll look into this for you. See: Private messages
Cheers,
Robbie