As you may notice there is a shop icon beside the gather menu icon in responsive mode, please follow these instructions to hide it from the responsive header:
2 - open your website in site setting mode ( on top admin bar click on site setting option )
3 - now when site setting is ready, on left panel look for "Notification", select it.
4 - if it's saying "off" on that window turn it on
5 - look for "SHOP CART OPTION" option ( turn it on if its off )
6 - Make sure you deactivate "Show Icon in Header" under "SHOP CART OPTION" and then deactivate "SHOP CART OPTION" too.
7 - Save site setting and check your website again.