Notice: session_start(): Ignoring session_start() because a session is already active in E:\xampp\htdocs\linked-pages.com\contacts\Connect.setting.php on line 2

Fatal error: Uncaught Error: Undefined constant "SERVER_NAME" in E:\xampp\htdocs\linked-pages.com\contacts\Connect.setting.php:289 Stack trace: #0 E:\xampp\htdocs\linked-pages.com\contacts\index.php(5): include() #1 {main} thrown in E:\xampp\htdocs\linked-pages.com\contacts\Connect.setting.php on line 289