Fatal error: Uncaught Error: Call to undefined method app\util\mail::load() in C:\xampp\htdocs\nancer\vendor\slim\slim\Slim\Handlers\Error.php:64 Stack trace: #0 [internal function]: Slim\Handlers\Error->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response), Object(Illuminate\Database\QueryException)) #1 C:\xampp\htdocs\nancer\vendor\slim\slim\Slim\App.php(683): call_user_func_array(Object(Slim\Handlers\Error), Array) #2 C:\xampp\htdocs\nancer\vendor\slim\slim\Slim\App.php(408): Slim\App->handleException(Object(Illuminate\Database\QueryException), Object(Slim\Http\Request), Object(Slim\Http\Response)) #3 C:\xampp\htdocs\nancer\vendor\slim\slim\Slim\App.php(314): Slim\App->process(Object(Slim\Http\Request), Object(Slim\Http\Response)) #4 C:\xampp\htdocs\nancer\index.php(47): Slim\App->run() #5 {main} thrown in C:\xampp\htdocs\nancer\vendor\slim\slim\Slim\Handlers\Error.php on line 64