Random gray bar at top

I have a random gray bar showing under my logo area and above the navigation on the page I am using the plugin https://www.maverickmediainteractive.com/SeamlessConstruction/photo-gallery/

Note on all my other pages the gray bar does not appear https://www.maverickmediainteractive.com/SeamlessConstruction/about/

I tried to add some custom css to make that bar go away but had no luck. Can someone help? I really like the plugin.