I'm new to Blender and hitting a wall here. So I created a UV map for the eyes of this character which I've been able to view, but I can't figure out how to start texturing the eyes. It just won't let me view the eyes in texture painting at all (can't even choose texture painting), and now I can't see the UV Map anymore. I would be fine with creating the texture externally in photoshop, but I'm at a loss here. I followed a tutorial to paint the character, but not sure where I'm going wrong with the eyes here.
Dropbox files here (Please let me know if the link or files don't work): https://www.dropbox.com/sh/m7whjq6qsbgr7w5/AAAMgOmrx6AqFT5hHSwzL7Jta?dl=0