Fatal error: Uncaught Error: Call to a member function getBody() on null in C:\xampp\htdocs\Safe4\includes\HttpController.php:40 Stack trace: #0 C:\xampp\htdocs\Safe4\includes\Safe4Controller.php(71): Safe4\Safe4Controller->post('https://safe-4....', Array, Array) #1 C:\xampp\htdocs\Safe4\testing.php(73): Safe4\Safe4Controller->getSessionKey() #2 {main} thrown in C:\xampp\htdocs\Safe4\includes\HttpController.php on line 40