Column Display

Hello,
I was wondering if someone could try and assist me with an issue I am experiencing with this theme. When I originally installed it the design featured two columns. Now that I’ve been customizing it the theme will only display one column. In the “customize” section I have it checked that I would like it to display the two columns, I’ve tried removing all of the featured images (operating under the assumption some were too large and throwing off the column display). I tried installing and uninstalling the theme. My site is: https://www.gradgonegypsy.com/
Please let me know how to remedy this, please!