Posts are not showing up on Catergory Pages

I am seeing your posts show up just fine on: https://www.frozentuxedos.com/category/game-summaries/

Where are they not showing up?

To change the font color create a child theme or what I do is download Jetpack plugin and use the css editor.

body {
	color: #fff;
}

But if you want just a white background on your posts so text shows up better add this.

.col-md-9 {
    background: #fff;
}