Fatal error: Uncaught OneLogin_Saml2_Error: Settings file not found: /var/www/html/lib/php-saml/settings.php in /var/www/html/lib/php-saml/lib/Saml2/Settings.php:315 Stack trace: #0 /var/www/html/lib/php-saml/lib/Saml2/Settings.php(112): OneLogin_Saml2_Settings->_loadSettingsFromFile() #1 /var/www/html/lib/php-saml/demo2/index.php(16): OneLogin_Saml2_Settings->__construct() #2 {main} thrown in /var/www/html/lib/php-saml/lib/Saml2/Settings.php on line 315