JuliaKline on "[Plugin: Wordfence Security] infection found within a WordFence file"

In a WordFence scan 2 days ago, it found an infection within a WordFence file so I deleted it, and that broke the plugin.

I just now reinstalled & reactivated WordFence and ran a new scan. It found the following New Issue:

File contains suspected malware URL: /home/kbtgedjj/public_html/juliaintheraw.com/wordfence-waf.php

What do I do to fix this? I believe that if I delete the file it will break WordFence again, right? And more to the point, how is WordFence instantly infected? I ran the scan & get this result literally 5 minutes after installing it and activating it.

Thanks for any help.

https://wordpress.org/plugins/wordfence/