Meaning: The geometry of the profile system landing curve is not proper or is missing inputs. For edge reinforcements, this can be caused when the edge ID is modified. Smart 3D changes the edge ID when you modify the boundary coinciding with the edge. For sketched boundaries, deleting and recreating an edge boundary creates a new edge ID. Extending, trimming, or moving an existing sketch boundary group does not change the edge ID.
Check that the inputs for the landing curve and the boundaries of the profile are valid.
Recompute the object on the To Do List.