Cannot run the task because the scanning service is not running

xztd34

Hi, I installed just macos Sierra from scratch and when I install Bitdefender Antivirus for mac (latest version) it installs fine but when I open Bitdefender in the antivirus tab I have a remark and when I hit the button Fix This Issue and get the error

Cannot run the task because the scanning service is not running

Any idea how to solve this please ?

Many thanks