Deleting Expired Activities?

Hi, under Activities - Table View I have an ‘expired activity’ shown. When i click on the activity name I get ‘Page not found’. Anyone else seen this? Is there a way to delete it? Thanks.

Generally, the expired activities provide a history of what you had in your plan and aren’t deleted. We’ll be adding an ability to compare what you had planned with what you performed. We will look to add the ability to delete / adjust them at that point.

thankyou