Fatal error: Uncaught Error: Call to undefined function app() in /home/gbc4/public_html/erp/storage/framework/views/c9f3204e45935c2e0842157cfe020e975a1cd433.php:3 Stack trace: #0 {main} thrown in /home/gbc4/public_html/erp/storage/framework/views/c9f3204e45935c2e0842157cfe020e975a1cd433.php on line 3