object(Facebook\Exceptions\FacebookSDKException)#724 (7) {
  ["message":protected]=>
  string(111) "Required "app_id" key not supplied in config and could not find fallback environment variable "FACEBOOK_APP_ID""
  ["string":"Exception":private]=>
  string(994) "Facebook\Exceptions\FacebookSDKException: Required "app_id" key not supplied in config and could not find fallback environment variable "FACEBOOK_APP_ID" in /home/xuwudfpi/phpls/vendor/facebook/graph-sdk/src/Facebook/Facebook.php:139
Stack trace:
#0 /home/xuwudfpi/phpls/app/Src/Auth/Providers/Facebook.php(23): Facebook\Facebook->__construct(Array)
#1 /home/xuwudfpi/phpls/app/Src/Auth/ProviderFactory.php(118): App\Src\Auth\Providers\Facebook->__construct()
#2 /home/xuwudfpi/phpls/app/Controllers/Account/Account.php(38): App\Src\Auth\ProviderFactory->setProvider('facebook')
#3 /home/xuwudfpi/phpls/app/Src/Mvc/BaseController.php(20): App\Controllers\Account\Account->actionLogin(Array)
#4 /home/xuwudfpi/phpls/app/Src/Application.php(180): App\Src\Mvc\BaseController->action('Login', Array)
#5 /home/xuwudfpi/phpls/app/Src/Application.php(145): App\Src\Application->dispatch('Account/Account...', Array)
#6 /home/xuwudfpi/public_html/index.php(18): App\Src\Application->execute()
#7 {main}"
  ["code":protected]=>
  int(0)
  ["file":protected]=>
  string(72) "/home/xuwudfpi/phpls/vendor/facebook/graph-sdk/src/Facebook/Facebook.php"
  ["line":protected]=>
  int(139)
  ["trace":"Exception":private]=>
  array(7) {
    [0]=>
    array(6) {
      ["file"]=>
      string(56) "/home/xuwudfpi/phpls/app/Src/Auth/Providers/Facebook.php"
      ["line"]=>
      int(23)
      ["function"]=>
      string(11) "__construct"
      ["class"]=>
      string(17) "Facebook\Facebook"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(1) {
        [0]=>
        array(8) {
          ["app_id"]=>
          string(0) ""
          ["app_secret"]=>
          string(0) ""
          ["default_graph_version"]=>
          string(5) "v2.10"
          ["enable_beta_mode"]=>
          bool(false)
          ["http_client_handler"]=>
          NULL
          ["persistent_data_handler"]=>
          NULL
          ["pseudo_random_string_generator"]=>
          NULL
          ["url_detection_handler"]=>
          NULL
        }
      }
    }
    [1]=>
    array(6) {
      ["file"]=>
      string(53) "/home/xuwudfpi/phpls/app/Src/Auth/ProviderFactory.php"
      ["line"]=>
      int(118)
      ["function"]=>
      string(11) "__construct"
      ["class"]=>
      string(31) "App\Src\Auth\Providers\Facebook"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(0) {
      }
    }
    [2]=>
    array(6) {
      ["file"]=>
      string(56) "/home/xuwudfpi/phpls/app/Controllers/Account/Account.php"
      ["line"]=>
      int(38)
      ["function"]=>
      string(11) "setProvider"
      ["class"]=>
      string(28) "App\Src\Auth\ProviderFactory"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(1) {
        [0]=>
        string(8) "facebook"
      }
    }
    [3]=>
    array(6) {
      ["file"]=>
      string(51) "/home/xuwudfpi/phpls/app/Src/Mvc/BaseController.php"
      ["line"]=>
      int(20)
      ["function"]=>
      string(11) "actionLogin"
      ["class"]=>
      string(31) "App\Controllers\Account\Account"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(1) {
        [0]=>
        array(1) {
          ["provider"]=>
          string(8) "facebook"
        }
      }
    }
    [4]=>
    array(6) {
      ["file"]=>
      string(44) "/home/xuwudfpi/phpls/app/Src/Application.php"
      ["line"]=>
      int(180)
      ["function"]=>
      string(6) "action"
      ["class"]=>
      string(26) "App\Src\Mvc\BaseController"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(2) {
        [0]=>
        string(5) "Login"
        [1]=>
        array(1) {
          ["provider"]=>
          string(8) "facebook"
        }
      }
    }
    [5]=>
    array(6) {
      ["file"]=>
      string(44) "/home/xuwudfpi/phpls/app/Src/Application.php"
      ["line"]=>
      int(145)
      ["function"]=>
      string(8) "dispatch"
      ["class"]=>
      string(19) "App\Src\Application"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(2) {
        [0]=>
        string(21) "Account/Account/Login"
        [1]=>
        array(1) {
          ["provider"]=>
          string(8) "facebook"
        }
      }
    }
    [6]=>
    array(6) {
      ["file"]=>
      string(36) "/home/xuwudfpi/public_html/index.php"
      ["line"]=>
      int(18)
      ["function"]=>
      string(7) "execute"
      ["class"]=>
      string(19) "App\Src\Application"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(0) {
      }
    }
  }
  ["previous":"Exception":private]=>
  NULL
}