Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\erp\storage\framework\views\29a16abe96642c72df8e9b293c3f2688.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\erp\storage\framework\views\29a16abe96642c72df8e9b293c3f2688.php on line 4