New Photon: Tinker Tab Is Giving Me a Hard Fault Whenever I Click a Pin

I just connected a Photon to my phone and I’m trying to use the Tinker function.

I’m trying to get the D7 LED to light up with the digitalWrite funtion. I am able to click on the D7 button and it gives me the pop up window and I can click digitalWrite. When I try to click D7 after that it immediately flashes the red light on the board and it says there is a hard fault in the events tab.

I don’t know what I’m doing wrong.