Genesis Theme Issue

I am using Genesis theme on my site. I want to use table of content plus plugin but every time i activate the plugin, my site content becomes bold and in H1 heading. Screen shot attached bellow. Kindly tell me what should i do now. I changed my genesis theme many time but still facing the problem. Table of content plugin works well on any other theme. Not working in just genesis themes.

Hey there

Sorry but but we support only our products, for Genesis theme you have to contact theme author