having error while importing

hello i am using industify theme and i am trying to import demo content but i get this error and i dont know how to fix it can you please guide me?

“Error: Widget import data could not be read. Please try a different file.
The Redux option name: industify_fn_option, was not found in this WP site, so it was not imported!”

The page I need help with: [log in to see the link]