Need help with Weaver 2010

I just noticed that on my site’s blog, using a customization of the Weaver 2010 theme, the Header for my comments section is in a color that makes it illegible. Also, the comments box (and the search box before I deleted it) are both such a dark grey that you can barely see the text you are typing into it. I’ve gone through all of the traditional options with the theme as well as scanning through the CSS style sheets, but I can’t seem to find a way to fix it. I’m decent with coding, but I’m certainly no expert and I’m willing to admit when I’ve been defeated. Has anyone else ever encountered this problem with this theme? Does anyone have any idea how to fix it? Please refer to any post on https://www.paperlanternlit.com/blog to see what I mean (obviously this is not a problem on the main page).

Thanks!

-B