Unable to complete OAuth: no token returned from Twitter code 500

## wa-system/auth/adapters/twitterAuth.class.php(189)
#0 wa-system/controller/waOAuthController.class.php(65): twitterAuth->auth()
#1 wa-system/controller/waController.class.php(21): waOAuthController->execute()
#2 wa-system/controller/waViewController.class.php(46): waController->run(NULL)
#3 wa-system/controller/waFrontController.class.php(263): waViewController->run(NULL)
#4 wa-system/controller/waFrontController.class.php(190): waFrontController->runController(Object(hubOAuthController), NULL)
#5 wa-system/waSystem.class.php(834): waFrontController->execute(NULL, 'OAuth')
#6 wa-system/waSystem.class.php(616): waSystem->dispatchFrontend('oauth.php')
#7 index.php(7): waSystem->dispatch()
#8 {main}

GET

array(
  'app' => 'hub',
  'provider' => 'twitter',
)

Params

array()