How can I enable Annoyance Blocking in AdGuard for iOS?

Hi everyone! I’m using AdGuard on my iPhone (iOS), and when I run the test on the official AdGuard Test Page ( https://adguard.com/en/test.html ), everything shows a ✓ except for Annoyance Blocking, which shows an X.
Does anyone know why this happens on iOS? Is it a limitation of Safari, or is there some extra setting I need to enable?
Thanks in advance!