Hey Jason so a couple of things you have to do.
first remove this package because it has your playmaker file in it
(edit: I see admin removed it already)
second, you have
regular trigger event on your button with a
regular box collider (by regular I mean that it is looking for 3D triggers) but on your camera (head) you placed a
rigidbody2D with a
circle collider 2D. Either change button to have a 2D collider as well with trigger2D Event instead of the regular Trigger Event OR remove the circle collider 2D and the rigidbody 2D on the camera with a regular rigidbody and a regular circle collider.
third and last, notice that the camera (head) also has a tag - MainCamera, even with all the changes from the last step you still need to set the triggers collide tag to Main Camera, instead of Untagged.
The reason the FPS controller worked was because it has that Character Controller (which is a regular 3D collider) and the tag is set to Untagged, which the button is set to look for.
When doing the changes don't forget to set to Is Trigger (which you have already set, but just in case).
That should do it!