footer issues with Photo World Theme by SKT Themes

Hi:
My website is https://www.bulkwholesalefasteners.com I can’t for the life of me figure out how to manipulate the footer with “Main Menu”, “Useful Links”, and “Get in Touch”. Awhile ago, I worked on the “Contact Us” space next to them. Now I cannot find where I did this in the Dashboard. I would think it would be widgets, but I can’t find these in any of my widgets. Thank you for your help.