ZBrushCentral

My tool disappeared from the canvas

I was messing with my project and all of a sudden it disappeared, I was just rotating the camera. Does anyone know how to solve it? how do i get back to the camera where my object was
I close and open the file again but it is like this with nothing
and the subtools are there
I just don’t see them.

Same thing just happened with me? : / Any insight?