PSE 2020 Graphics in Editor

Hello,

I want to add my images to the graphic catalog in PSE 2020. I used to be able to do that in a previous version, but the method I used does not work with the 2020 version. My images are included when I am in Editor and I select Graphics to add a background, but I get an error message that says the image can't be found. So, I have two questions: How can I add my own images to the Graphics file and 

                  Why am I getting an error message when I select one of my files?

You need to ask program questions in the forum for the program you are using
To ask in the forum for your program please start at https://community.adobe.com/
Moving from Using the Community (which is about the forums) to the correct forum... Mod