To disable mobile menu, please copy this code and paste to file functions.php (child-theme):
function shopic_handheld_footer_bar() {
return;
}
Please do not delete or reinstall the child-theme, all your extra customizations are written here, if you delete the child-theme, your customizations will be lost.
I added the code before but lost it, did you delete it or reinstall the child-theme?