Lost the Layer Window

Hi, sorry this is probably a stupid question, but I've been playing with the program for an hour now and can't seem to figure this out.  I use Coral Painter Essentials 5,  I'm pretty new to these programs in general. 

Usually I have the layers window at the side where it can be used easily.  However I opened the program today and couldn't find the layers window anywhere.  I checked the windows tab and it is supposed to be showing.  Is there a way to bring it to it's original place?

Thank you so much