My photos are greyed out when I try to access them to put into a Facebook or other internet site. What did I do to have them greyed out? I want to access them

You might be looking in the wrong place. The "Photos" menu is at the bottom of the sidebar:

I see you're using Ventura, so a warning: You may not see a list of albums, just your Library view, making it harder to find a particular picture. You can write done the title or file name and use the search feature in the upper right of the dialog (not shown above) to bring up the picture you want.