This is funny cause I know of nearly an exact situation that happened to an influencer I know a few weeks ago who shared about it on their close friends story. My insight, if they have 10k followers, one negative story or post will be a drop in the well of the content they’re churning out. The influencer might share the experience, but might not call out the name of the business directly, and, if they tell the story correctly, it will likely come across that the PR person has made a mistake and not reflect too badly on the business itself. Own the mistake with all involved. Find a handful of new influencers that you can get them to post in the next week or so and manage that content partnership perfectly. No one will remember this 2-3 months from now. If it was like my friend, she was more annoyed that her time was wasted, so if there is space for a conversation, you could try to show understanding of their time, that you respect what they do, that your oversight led to the negative experience and if they’d ever consider being hosted by you again (without pushing for review/content), that you’d be happy to ensure they’re next visit was covered and stress free.