I need to point my domain to a different website. I changed it in the domain settings but it's not working. Can someone help me with that?

I need to point my www.sisterlisters.net to edeangelo.langrealty.com. I says that it is pointed to it but it is not working. I had it pointed to a different website last month but then canceled that site. Maybe that's the problem but I do not know how to fix it