Defamation

I am using Facebook. On 24/04/2021, My Facebook account was hacked / someone created a fake account by using my photos uploaded at my Facebook account. That fake account is very similar to my original Facebook account and the creator/hacker sending friend request to my Facebook contacts(friends, relatives, etc) . On accepting his friend request he is chatting over Facebook messenger and requesting money from my contacts. On receipt of such messages from hacker, some are cross checked with me. All my contacts may not having my present contact number to verify the genuineness of the request. After knowing the intention of hacker act of wrong doing, I have alerted all my contacts over Facebook and whatsApp. I also lodged a complaint with Facebook and Cybercrime. Meantime, One of my contacts felt badly on such message from me (hacker) and added some derogatory comments on my friendship and posted to my original Facebook account. The post might have seen all my Facebook contacts. My name and fame might be damaged badly. I am a former education instructor in IAF, author of Books and presently working as an Officer in Union Bank of India. I am having more than 600 contacts from different countries. My name and fame defamed by allowing Facebook to create a fack account similar to my original account. Kindly guide me so as to file suit against Facebook for allowing access to create a fake account in my name.