How to Lock Entire Category (Live Tv, Movies, Series)

Click on the right top corner of the screen "Settings," as seen in the image below (marked in red)

Click on "Parental Control," as seen in the below image (marked in red)

 Enter a "Four-digit Parental Password" and click on "Submit," as seen in the below image (marked in red)

Click on "Settings," as seen in the below image (marked in red)

Toggle the On/Off button to "Lock" entire categories of "Live TV, Movies, and Series," as seen in the image below (marked in red)