Erro de processamento

ficheiro acontroller.php não existe em private/controller

#0 C:\www\oscar.pt\eticketing.magnet\private\loader.php(253): loader::loadFile('C:\\www\\oscar.pt...')
#1 C:\www\oscar.pt\eticketing.magnet\private\base\Route.php(94): loader::loadController('acontroller')
#2 C:\www\oscar.pt\eticketing.magnet\private\base\Route.php(110): Route::getControllerInstance('acontroller')
#3 C:\www\oscar.pt\eticketing.magnet\private\base\Route.php(142): Route::getController('acontroller', 'index', Array)
#4 C:\www\oscar.pt\eticketing.magnet\index.php(32): Route->handle()
#5 {main}