Slim Application Error

The application could not run because of the following error:

Details

Type: ErrorException
Code: 8
Message: Undefined index: list
File: /www/llgc/index.php
Line: 2419

Trace

#0 /www/llgc/index.php(2419): Slim\Slim::handleErrors(8, 'Undefined index...', '/www/llgc/index...', 2419, Array)
#1 [internal function]: {closure}()
#2 /www/llgc/admin/vendor/slim/slim/Slim/Route.php(468): call_user_func_array(Object(Closure), Array)
#3 /www/llgc/admin/vendor/slim/slim/Slim/Slim.php(1357): Slim\Route->dispatch()
#4 /www/llgc/admin/vendor/slim/slim/Slim/Middleware/Flash.php(85): Slim\Slim->call()
#5 /www/llgc/admin/vendor/slim/slim/Slim/Middleware/MethodOverride.php(92): Slim\Middleware\Flash->call()
#6 /www/llgc/admin/vendor/slim/slim/Slim/Middleware/PrettyExceptions.php(67): Slim\Middleware\MethodOverride->call()
#7 /www/llgc/admin/vendor/slim/slim/Slim/Slim.php(1302): Slim\Middleware\PrettyExceptions->call()
#8 /www/llgc/index.php(2912): Slim\Slim->run()
#9 {main}