Vanishing point problem

So! I have been searching for a solution bet never have come across it.

This is a project for school and want it to be perfect. The problem is, when I use the Vanishing Point and paste in the picture and made the grids. It only goes on all grids but not the one on the bottom.

I have been struggling with this for over an hour. Please help!

Here is a screenshot showing that it goes on one side. The one grid doesn't want to cooperate. 

All help would be appreciated.