We have deprecated Github login for our dashboard and will ask you to provide a password.
In order to gain the access to your dashboard again, please use “ Forgot your password? ” link under the login form, and enter the email address used to login to GitHub. You will receive an email from us including a link to the password reset page.
Tip : You can check your GitHub settings page to find out your primary email address.
More articles can be found @ SendBird HelpCenter