Annotation in Toolbox does not work after recent update for PDF24

After updating recently to 11.20.1 the annotation in Toolbox does not let me add annotations and free drawing also does not work.

I am using WIN10 opperating system.   I went to setting to see if I can activate the annotation in Toolbox settings and the is no option there to activate the annotation!    Please let me know the solution and how to proceed to solve this problem.

Thanks,

Mehran