Can't open PNG or JPG in Photoshop

[Kayla5DEB]

Hi there, I am having issues opening PNG and JPG in Photoshop. I downloaded files from Design Cuts to follow along a tutorial, it had both types of files, and whenever I try to open either of them I get the  following error:

I've tried downloading some other files from Design Cuts and Creative Market, and it won't open any of the images. 

Thanks! 

[jane-e]

Can you open PNGs and JPEGs that are not from Design Cuts?

~ Jane