Garena Should Restore My Facebook-Linked Free Fire Account

I am a Free Fire player on Android and I am writing because my Free Fire game account linked to my Facebook is hacked and I can no longer use my original game ID. My Free Fire UID is 1630329136. My Facebook account itself is not hacked; I can still access my Facebook account normally. The problem is only with my Free Fire game account connected to this Facebook login. When I try to log in to Free Fire with Facebook, I cannot access my old ID and it seems that someone else is using or has taken over this game account. I kindly request that my original Free Fire account with UID 1630329136 be recovered and returned to me, or that any unauthorized access to this game ID be blocked so that only I, as the real owner of the Facebook account, can use it again.