defense+ doesnt work (diagnosis doesnt work, and installation failed)

Hi short question.
when i open mi comodo Internet security. it says that defense + doesnt work right.
and to check this i run the diagnosis but it failed in the Installation Phase.
Need help fast antivirus and rest runs perfect.
sorry for mi bad english and german autocorrectur makes it not even a bit better.

Try reinstalling by following the advice I give in this topic and let me know if after reinstalling by following those steps Defense+ is now working correctly.