BitDefender icon pop up and application doesn't open

Hello to everyone!

I have a question about BitDefender app on Mac. The version of the pc is macOS 10.14.1.

Through settings-->privacy, i enabled permissions on Accessibility & Full disk permissions. While i'm clicking to open Endpoint BitDefender for Mac, the icon of BitDefender pop's up on the screen and after all the app doesn't open.

Can someone explain me, why is this happening!?

Thank you!