Deal is not being honoured & I am being threatened

I run a holiday home short term rental and I went into a barter collab with an influencer. I gave her my property for the Christmas eve and following day (2 Nights) in return of 4 deliverables. The conversation of deliverables happened on mail and their group acknowledged it. Now during the stay they had a very laid back attitude and were not taking much content, when asked they told me they are experts and know what they are doing. After the stay they did not provide me any of the deliverables and only told me that they will in some time. After a month the influencer posted the reel on Instagram but just for 3 hours and then removed it from her profile. Since then I am following up continuously but they do not reply me anything. I have some proofs that they came to the property such as their Aadhar cards, car number plates, their videos, their call recordings and whatsapp conversations. Two days ago I finally had it and mailed them that since they are not honouring their end of the deal and not compensating for the stay I will have to make this information public and make people aware of influencers like you. After that I got a text on WhatsApp from one of the influencers group members explaining that why they did not provide the work, they tell me that the property was very bad and they did not like a single thing about it thats why they did not do the work, but if it was so bad why did they stay 2 whole days and only complain now when they are questioned? So they started to put allegations on my property manager that the work has been shared with her and I made a group with her and my manager, my manager abused her, only used one work (C#u+|@) but the woman got enraged. She is threatening me that she will file a case against me for harassment. She says I made the group and even though someone else abused she will file a case against me. Can she drag me to court for this? I need legal advice in this situation as I have spent a lot of money on this collaboration and only being cheated every part of the way with them. I know they just want me to stop following up but my heart does not accepts. What should I do? Please help!