Looking for logging into the Spotify Button 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 Spotify Button site. After that you can login as usual with your login credentials.
https://community.spotify.com/t5/Android/Login-button-not-working/td-p/4404439
https://community.spotify.com/t5/Other-Partners-Web-Player-etc/Can-t-use-Facebook-login-buttons/td-p/471640/page/3
https://github.com/farzaa/Spotify-Login-Button-
https://github.com/spotify/SpotifyLogin
https://github.com/farzaa/Spotify-Login-Button-/blob/master/public/index.html
http://community.algoriddim.com/algoriddim/topics/spotify-login-not-responding
https://www.reddit.com/r/spotify/comments/3ojp6o/spotify_desktop_client_facebook_login_button_no/
https://stackoverflow.com/q/21089728
https://steelkiwi.com/blog/how-connect-spotify-sdk-your-project/
https://www.npmjs.com/package/react-spotify-login
https://www.npmjs.com/package/react-social-login-buttons
https://stackoverflow.com/questions/34863074/spotify-login-with-meteor-and-xinranxiaoaccounts-spotify?rq=1
https://invoxia.zendesk.com/hc/en-us/articles/115005434929-Spotify-Connect-how-to-preset-a-playlist-on-Triby-s-buttons-Android-