I am trying to complete challenge for Visualize your Business data. 

I have added the report chart as a scatter chart and the challenge is still giving me this error " The 'Property Listings' report does not appear to be using a scatter chart. 

I cannot seem to complete Step 2- 'Add a validation rule' https://trailhead.salesforce.com/projects/suggestion_box/steps/suggestion_box_4

The formula given below, seems to be incorrect
Implemented_Date__c > TODAY


Can someone help me please? I'm not sure what I have done wrong?

Thanks in advance.