Dear Andrea,
In this issue, you could use the custom CSS below.
#backToTop {
display: none !important;
}
Please don’t forget to give us 5-Star ‘rating and review’ (on https://themeforest.net/downloads ), if you like our item and our support too. It will give us inspiration and make us more ‘happy’ to support.
Best Regards,
ThemeLooks Support Team