Unable to turn on Web Protection and Ad Blocking on Malwarebytes for iOS v1

Web Protection and Ad Blocking are Malwarebytes for iOS version 1 features that protect your Safari browsing experience by blocking malicious sites, ads and trackers. Active web content restrictions on your iOS device prevent you from turning on the Web Protection and Ad Blocking features. 

The screenshot below displays the non-responsive Web Protection and Ad Blocking content blocker toggles:

To activate Web Protection and Ad Blocking:

1. Disable web content restrictions on your iOS device. See the Prevent web content section of the Apple article Use parental controls on your child's iPhone, iPad, and iPod touch.
2. Once Web content is unrestricted, turn on Web Protection and Ad Blocking on your device.
   • Turn on Web Protection in Malwarebytes for iOS
   • Turn on Ad Blocking in Malwarebytes for iOS