Logging into messages/facetime on MacBook Air
How come I can't log into message and facetime on my MacBook Air? I've have this Mac since 2017 or 2018 and I was able to log in before, but I'm not sure what happened. Everytime I try to log in, it says there was an error. My username and passowrds are correct becasue I can log in on other devices, just not on my mac.
MacBook Air 13″, macOS 10.12