Tile visual errors when The Table Visual is not added to View

Summary:

Hi, can anyone please help with the error message that appears when Table visual is removed from the view leaving the Tile visual in view.

Content (required):

The Tile visual appears with the correct value when the Table visual is included , however I only want to see the Tile visual, but when I remove the Table visual the view shows the below error.

My query uses the following Subject Areas:

Workforce Management - Worker Assignment Event Real Time

Workforce Management - Worker Assignment Real Time

Joined with Termination Headcount and Headcount

Version (include the version you are using, if applicable):