With reference to your thread on free forum. https://wordpress.org/support/topic/evolve-not-responsive
Please take a look at our demo page. http://demo.theme4press.com/evolve/shop/
It is different from yours.
Any plugin that has it’s own css files can result in conflict with the theme’s css
Many of your plugins loads it’s own css file. Especially, your page builder plugin which is not tested with our theme.
Other than those plugins recommended or included with the theme, Please disable one plugin at a time to find out which plugin is conflicting with the theme.
Please reply only in this thread, Please do not reply in the free forum.