Unknown auth provider code 500

## wa-system/controller/waOAuthController.class.php(141)
#0 wa-apps/shop/lib/actions/shopOAuth.controller.php(26): waOAuthController->getAuthAdapter('facebook')
#1 wa-system/controller/waOAuthController.class.php(57): shopOAuthController->getAuthAdapter('facebook')
#2 wa-system/controller/waController.class.php(21): waOAuthController->execute()
#3 wa-system/controller/waViewController.class.php(46): waController->run(NULL)
#4 wa-system/controller/waFrontController.class.php(292): waViewController->run(NULL)
#5 wa-apps/shop/lib/classes/shopFrontController.class.php(22): waFrontController->runController(Object(shopOAuthController), NULL)
#6 wa-system/controller/waFrontController.class.php(190): shopFrontController->runController(Object(shopOAuthController), NULL)
#7 wa-system/controller/waDispatch.class.php(243): waFrontController->execute(NULL, 'OAuth')
#8 wa-system/controller/waDispatch.class.php(34): waDispatch->dispatchFrontend('oauth.php')
#9 wa-system/waSystem.class.php(614): waDispatch->dispatch()
#10 index.php(7): waSystem->dispatch()
#11 {main}

GET

[
  'app' => 'shop',
  'provider' => 'facebook',
]

Params

[]