I've had Photoshop for some time and only recently had any issues with it. I was actually using it today before the issue occurred. I opened the app to start a project and I couldn't edit anything. The layer in the work space was black and the layer on the right in the dash was locked. I couldn't create a new layer, either. When I used a tool in the work space, a pop-up said "Could not use (insert tool) tool because of a program error". I'm not sure why this is happening because I haven't messed around with the setting at all, and it was literally working a couple hours ago without problems. Any help would be greatly appreciated.