sorry for this issue can you please share mega menu code so i will check and update
I do not use this theme, but you can base this text "Collection Six" and find it in your theme to locate the file.
When you find that file, you can duplicate code as the theme has used to create a config to show data collection.
Screenshot to refer: https://prnt.sc/11atyc2
Hope this helps. But if you can not do that, you can add me: firstname.lastname@example.org as a staff and I'll check it for you.