Error Signing In with Gmail: Please Use a Work Email Issue

I'm encountering an error when trying to sign in using Gmail (which is the only method I can use, as I signed up with my Gmail account). The error message is: {"type":"BadRequest","message":"Please use a work email","details":null}. This error appears before I even get a chance to select or enter my email—it shows up before the Gmail login prompt appears. I've tried using Chrome and Microsoft Edge with the same error message. Could you please assist me here?