I have a user who is trying to authenticate his account with Twitter using this mod, but he's receiving an error each time. Here's what I've pulled from the error log:
Undefined index: oauth_token - library/Social/Extra/twitteroauth/twitteroauth.php:114
#0 /home4/public_html/library/Social/Extra/twitteroauth/twitteroauth.php(114): XenForo_Application::handlePhpError('URvFcuOe6yeNBLJ...')
#1 /home4/public_html/library/Social/Provider/Oauth/Twitter.php(39): TwitterOAuth->getAccessToken('
http://www.tita...')
#2 /home4/public_html/library/Social/Provider/Abstract.php(14): Social_Provider_Oauth_Twitter->getAccessToken('
http://www.tita...')
#3 /home4/public_html/library/Social/ControllerPublic/Register.php(38): Social_Provider_Abstract->authenticate(Object(Social_Provider_Oauth_Twitter))
#4 /home4/public_html/library/Social/ControllerPublic/Register.php(396): Social_ControllerPublic_Register->_getProviderResponse()
#5 /home4/public_html/library/XenForo/FrontController.php(337): Social_ControllerPublic_Register->actionTwitter(Object(XenForo_RouteMatch))
#6 /home4/public_html/library/XenForo/FrontController.php(134): XenForo_FrontController->dispatch()
#7 /home4/public_html/index.php(13): XenForo_FrontController->run()
#8 {main}