On mobile the ads break the responsiveness

Hello
I have setup successfuly the plugin but i am facing a problem. On desktop the ads look fine i guess but on mobile they become so big that it breaks the reaponsiveness of the theme. Can you help out? I am using visual composer and the ad only appears if i use an empty text field so thats how i m showing ads on posts. I cant have ads at the bottom of my home page because when i add a text field it shows at the top. But on posts pages it breaks the reaponaiveness on mobile.
Can you please help out?

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