It has now been restored.
Thank you for using AWA.
We are currently facing an issue of users being unable to log in via Facebook.
However, we are working to resolve the issue and would appreciate your patience until it is resolved.
We understand that some users use the Facebook login function to access our service, but we ask that users use other login methods, such as via email address, until this issue is resolved.
We apologize for any inconvenience this may cause. We will notify you as soon as the issue is fixed.