style.css hacked and cannot find where to remove

my child theme style.css has been redirected and has a [removed]

hardcoded into somehow. In Firebug is says the path is:
‘https://o-f-n-a.org/wp-content/themes/news/style.css?ver=970ef88f44aa6a76ff4b6443177bbc3d’
The real path should be:
‘https://o-f-n-a.org/wp-content/themes/news/style.css’

How do I find out where they are redirecting my style.css with the “?ver=”?

I have ran the WordFence, Sucuri, purchased SiteLock from GoDaddy and none of these can isolate my issue.

Any ideas or suggestions would be greatly appreciated.