twitter integration

Hello, What is the right URL ? the Xenforo documentation say use this <URL> /index.php (doesn't work) - https://xenforo.com/help/twitter-integration/ in different thread I can read <URL> /connected-account.php (work for admin test but not for registration) or <URL> /register/twitter (doesn't...

Hi there, sorry, it's me again... This time I'm trying to integrate Twitter to my new forum but I get this error: Could not retrieve a valid Token response from Token URL: <?xml version="1.0" encoding="UTF-8"?> <hash> <error>This client application's callback url has been locked</error>...