Fatal error: Uncaught OneLogin_Saml2_Error: Invalid array settings: sp_acs_url_invalid, sp_sls_url_invalid, idp_entityId_not_found, idp_sso_not_found, idp_cert_or_fingerprint_not_found_and_required in /var/www/html/lib/php-saml/lib/Saml2/Settings.php:122 Stack trace: #0 /var/www/html/lib/php-saml/lib/Saml2/Auth.php(153): OneLogin_Saml2_Settings->__construct(Array, false) #1 /var/www/html/lib/php-saml.rayane/demo1/index.php(11): OneLogin_Saml2_Auth->__construct(Array) #2 {main} thrown in /var/www/html/lib/php-saml/lib/Saml2/Settings.php on line 122