Disabling Sticky Menu recieving error on non home pages now

Customising ▸ Theme Settings Navigation
When I untick these two options below

Sticky menu Stick menu to top of screen
Sticky menu scales logo Should the main logo be downscaled when scrolling

I get the following error when going on other pages- home page works fine
“Notice: Undefined index: theme_settings_responsive_menu_breakpoint in /home/trentkhi/public_html/wp-content/themes/siteorigin-north/inc/settings.php on line 936”

I disabling response menu on the theme setings customisaiton part but still get it.. Please help

Sticky menu Stick menu to top of screen
Sticky menu scales logo Should the main logo be downscaled when scrolling