Hello,
1/ Header builder > delete Mobile menu element, for example – https://gyazo.com/ded6b84d6f6b01006e1280099bf9c5d1
2/ Theme Options > General > Enable Classic Widgets Panel > On, then check Appearance > Widgets
3/ Appearance > Menus > edit Main menu > menu item settings > label https://gyazo.com/d11d33376001d3d5cfcc5db82d71ea92
Regards