Aw Issues

I am having issues and not sure if it relates to how I set it up the Artist Website or if its a internal fas issue, I basically just chose to use the version 2,,,changed the top image and that was it, To make it function properly are there other things I should do...I have a miami beach gallery with over 100 photos but when I click the gallery on any device only 7 images come up, I have reported this in the website issues and to faa but the problem still exists, When I look at the gallery there is a little x over the gallery. I circled the area in question on the screen shot that I am enclosing that I suspect may be the culprit...When I erase the x all of the images come up,,,,,temporarily,,,,but when I go back in its back to the same problem issues, Does anyone have a clue on how I can fix this,
Also I have a artist nude gallery with only 2-3 images, The cover photo is a image of a painting I deleted a couple of years ago but now all of a sudden out of the blue it has appeared as my cover photo,....when you click the gallery that image is not in it ...just on the cover, .