HI Amanda,
me also, i have got this problem on site:identicalpictures.com
i think the solution proposed by @keithdriscoll is good.
i have done some fixes using wordfence and now trying sucuri and checking everything in the google search console.. if yet everything does not work, i will export all my content and start over! as other hosting provider advised me to do same.
let’s see what happens after google re-crawls my website after 24 hours..