Has my WordPress been hacked?

So I was just looking through webmaster tools. What I noticed was that a page had brought traffic via a bad keyword. The keyword is “www.localsex.com” and my site is NOT related to sex at all. So I think did a google search of that address and found yes, its a porn site of some sort, but I did not see my website come up in the searches. Then I changed my search terms to this “www.localsex.com cnatraining” and sure enough, my site came up.

In the small google search description, it even has the local sex words in it. What I don’t understand is how did this happen. If i click into my pages, and ctrl + f, I can’t find these words. Plus, I see an error at the top left of the page saying service unavailable. Any ideas how this might have happened?

The two pages that showed up with the issue that I found are these:

https://www.cnatrainingdotcom.com/get-paid-for-your-cna-training/

https://www.cnatrainingdotcom.com/certified-nursing-assistant-required-skills/