Activating adguard for mac with voiceover

macOS and Mac Apps

Hello! I have just purchased adguard for 2 computers. I activated it without any problems on my windows machine, but when i try to do that on my mac i don't have any success. When i open the app and press control option m to open the menu the app closes automaticly. When i try to press adguard on a ctrl+option+m twice menu nothing happens. So i don't know where to enter the activation key. Where should i do it? Sited people also couldn't help me. It's impossible to press on adguard in that menu. How should i activate it? I'm using macbook air 2017 with macos high siera 10.13.6. Thank you!