I am trying to track the included scene to remove the black wall and replace it with something else. Problem is, I can't for the life of me figure out how to track this properly and get it right. I have over 8 track points, with a very low solve error, but the plane won't correctly sit where it needs to. Can somebody help me get it right?

Also, this is my first question on SE. Let me know if I can do anything to better answer my question :)