Looking for logging into the Facebook Failed site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Facebook Failed site. After that you can login as usual with your login credentials.
https://gianism.info/ja/2018/03/23/failed-facebook-login-since-2018/
https://stackoverflow.com/questions/40935824/fb-sdk-error-login-failed-react-native
https://www.facebook.com/help/community/question/?id=10154491762128875
https://www.facebook.com/help/105487009541643?helpref=topq
https://www.facebook.com/help/community/question/?id=10157442335380319
https://www.facebook.com/help/community/question/?id=10154396384746346
https://trippiece.zendesk.com/hc/ja/articles/202222434-iPhone%E3%82%A2%E3%83%97%E3%83%AA%E3%81%ABFacebook%E3%81%A7%E3%83%AD%E3%82%B0%E3%82%A4%E3%83%B3%E3%81%A7%E3%81%8D%E3%81%AA%E3%81%84%E3%81%AE%E3%81%A7%E3%81%99%E3%81%8C
https://www.shoutmeloud.com/how-to-solve-facebook-login-problem.html
https://qiita.com/tosiooooooo/items/845621e033778ca2d6e9
https://github.com/facebook/facebook-swift-sdk/issues/306
https://community.spotify.com/t5/Accounts/Log-in-problem-Error-code-3-Facebook-login-failed-normal-login/td-p/1596693
https://community.spotify.com/t5/Android/login-failed-thru-facebook-on-android/td-p/839455
https://www.technobezz.com/how-to-fix-facebook-authentication-failed-on-android/