Fatal error: Uncaught Error: Call to undefined function app() in /lamp/www/flextype/project/routes/routes.php:13 Stack trace: #0 /lamp/www/flextype/src/flextype/routes/routes.php(30): require_once() #1 /lamp/www/flextype/src/flextype/flextype.php(353): require_once('/lamp/www/flext...') #2 /lamp/www/flextype/index.php(46): require_once('/lamp/www/flext...') #3 {main} thrown in /lamp/www/flextype/project/routes/routes.php on line 13