Fatal error: Uncaught TypeError: Invalid return value: callable object expected, "int" returned from "/var/task/user/api/index.php". in /var/task/user/vendor/autoload_runtime.php:18 Stack trace: #0 /var/task/user/public/index.php(5): require_once() #1 /var/task/user/api/index.php(6): require('/var/task/user/...') #2 {main} thrown in /var/task/user/vendor/autoload_runtime.php on line 18