Our Google Workspace for Edu account users cant login w/ SSO

Our Google Workspace for Edu accounts are not able to log in to p5js.org. We recently lost access to our projects for most of our domain account users. I reached out to the Google Workspace for Edu support team and after much troubleshooting and HAR file review, they determine it’s because of OAuth tokens are expiring on your end before they can authenticate. anyone know what’s going on?