customizer error

I'm finally working on my final website at explorationvacation.net and am getting the following message as I set up my widgets (and maybe other features, not sure):

Warning: Creating default object from empty value in /home2/travgal/public_html/wp-content/themes/catch-responsive-pro/inc/customizer-includes/catchresponsive-customizer.php on line 110

It seems to be working ok, but this makes me nervous. Any idea what is going on? Thanks