What if the person is spreading all this lies on a website, Twitter and Facebook and it is affecting your life and business?

Try contacting them and tell them what they’re doing is extremely hurtful and is affecting you life in many ways negatively. If they are purposely doing this and are continuing, report them on social media to take down their account as it is only spreading lies and negativity. Speaking with them first may help though as they may understand the consequences of their actions and how severe they are. It could teach them a lesson so that they will never do this again! But if this is something that they are not listening to what you have to say then report them to a higher power such as on social media and make sure people know that they are lies.