Warning: Undefined variable $link_model in D:\xampp\php\www\hunetr\link.php on line 2

Fatal error: Uncaught Error: Call to a member function getAllLinks() on null in D:\xampp\php\www\hunetr\link.php:2 Stack trace: #0 {main} thrown in D:\xampp\php\www\hunetr\link.php on line 2