Why do my pages have two <title> tags?

I recently started an audit of my site and noticed a ton of pages have the title tag showing twice in the code. I know this is only supposed to appear once, but for the life of me, I can’t figure out how to fix this.

If it helps, I’m using Yoast, but no other SEO plugins. Most things I’ve read have said it may be my WordPress theme doing this. I’d rather not have to install a new theme/redesign my pages, so wondering if anyone knows a fix for this?

 

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