Firstly, check the action is Closed within the section in question, if it is still within the Open section you will need to close them.

Fig 01: How to check if an Action is Open or Closed 

To close the review (either you have finished commenting or the section is not applicable), click Close Review and select from the form options and press OK. 

The two options are I have completed my review of this section or I am NOT responsible for reviewing this section.

Fig 02: How to close a Review Action

If you are still receiving notifications and the actions are closed, please log a ticket or Live Chat with Support