Slim Application Error

The application could not run because of the following error:

Details

Type: Error
Message: Call to a member function getArgument() on null
File: /home/galeriel/application/app/middlewares/doAction.php
Line: 64

Trace

#0 /home/galeriel/application/app/middlewares/doAction.php(27): App\Middlewares\doAction->findAction(Object(Slim\Http\Request))
#1 [internal function]: App\Middlewares\doAction->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response), Object(Slim\App))
#2 /home/galeriel/application/vendor/slim/slim/Slim/DeferredCallable.php(43): call_user_func_array(Object(App\Middlewares\doAction), Array)
#3 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response), Object(Slim\App))
#4 /home/galeriel/application/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(Slim\Http\Response), Object(Slim\App))
#5 /home/galeriel/application/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\App->Slim\{closure}(Object(Slim\Http\Request), Object(Slim\Http\Response))
#6 /home/galeriel/application/vendor/slim/slim/Slim/App.php(406): Slim\App->callMiddlewareStack(Object(Slim\Http\Request), Object(Slim\Http\Response))
#7 /home/galeriel/application/vendor/slim/slim/Slim/App.php(314): Slim\App->process(Object(Slim\Http\Request), Object(Slim\Http\Response))
#8 /home/galeriel/public_html/index.php(94): Slim\App->run()
#9 {main}