I have gotten a call from these people for a year. They say they are a debt collections agency collecting or trying to serve someone by the name of Lisa Hopkins. I do not even know this person. When I try to explain that to these people they get rude and irate and call me a liar. I am sick of them harassing when I have nothing to do with any of it.

Don't answer.  They are scammers trying to get your information.  If you don't give in, they won't make any money, and they will have to get a real job.