Fatal error: Uncaught Error: Call to undefined function userCan() in C:\WebServer\htdocs\bookshelf\storage\framework\views\ddae538a003f8741f31147c514d65692.php:2 Stack trace: #0 {main} thrown in C:\WebServer\htdocs\bookshelf\storage\framework\views\ddae538a003f8741f31147c514d65692.php on line 2