Account affected by malware

Hello,


I can't log in to my facebook account. Everytime i tried to log in, this message appears "It looks like your computer is being affected by malware. We'll help you fix the problem to keep your account secure and prevent malware from spreading to friends.
Malware is software that tries to steal personal information and causes problems when you use Facebook. Clicking or sharing links that contain spam can give your computer malware". Please suggest me how to resolve this problem.