When clicking the play button, my unity UI crashes although I can still test the game, Any resolution?

Please help, there is something wrong with my Unity Engine:

Before and After GameMode https://drive.google.com/open?id=0ByYyavKa1Xb5NnBFYUE3V3FmOFE

In Game Mode https://drive.google.com/open?id=0ByYyavKa1Xb5UW83ZGNwUmFKWU0

Video https://drive.google.com/open?id=0ByYyavKa1Xb5bjFEQzN6bmVhbDQ

For some reason whenever I enter game mode my unity interface seems to crash. Go in and out of play mode stops it but there is no possible way to enter play mode without the crash.