Different logo picture appears when I post to social networks like facebook
freedonations.org I have a paid sponsor whose ad appears in the ad widget on the right sidebar by the name "Nina International Beauty Salon" (purple color). Whenever I post to facebook her icon picture appears instead of my logo so it looks as though her salon is a representative of my website when it is not. I deactivated all of my plugins, removed the widget, deleted the ad including the picture in the media folder / library, I searched though the Editor folders to find no remnant of her jpeg but it still appears whenever I post. This happened before I updated to WP 4.0 "benny". I proceeded to update to 4.0 reasoning that it would resolve and fix my issue but it still continues. I'm at a loss. Can you please help?