500 Internal Server Error

Trying to get property 'id' of non-object (8)

#0 /data/wwwroot/wwwlxzhineng/app/controllers/ChannelController.php(186): flight\Engine->handleError(8, 'Trying to get p...', '/data/wwwroot/w...', 186, Array)
#1 /data/wwwroot/wwwlxzhineng/vendor/mikecao/flight/flight/core/Dispatcher.php(196): ChannelController::show('irbqhos(0)')
#2 /data/wwwroot/wwwlxzhineng/vendor/mikecao/flight/flight/core/Dispatcher.php(142): flight\core\Dispatcher::invokeMethod(Array, Array)
#3 /data/wwwroot/wwwlxzhineng/vendor/mikecao/flight/flight/Engine.php(312): flight\core\Dispatcher::execute(Array, Array)
#4 /data/wwwroot/wwwlxzhineng/vendor/mikecao/flight/flight/core/Dispatcher.php(191): flight\Engine->_start()
#5 /data/wwwroot/wwwlxzhineng/vendor/mikecao/flight/flight/core/Dispatcher.php(142): flight\core\Dispatcher::invokeMethod(Array, Array)
#6 /data/wwwroot/wwwlxzhineng/vendor/mikecao/flight/flight/core/Dispatcher.php(48): flight\core\Dispatcher::execute(Array, Array)
#7 /data/wwwroot/wwwlxzhineng/vendor/mikecao/flight/flight/Engine.php(64): flight\core\Dispatcher->run('start', Array)
#8 /data/wwwroot/wwwlxzhineng/vendor/mikecao/flight/flight/core/Dispatcher.php(191): flight\Engine->__call('start', Array)
#9 /data/wwwroot/wwwlxzhineng/vendor/mikecao/flight/flight/Flight.php(76): flight\core\Dispatcher::invokeMethod(Array, Array)
#10 /data/wwwroot/wwwlxzhineng/index.php(15): Flight::__callStatic('start', Array)
#11 {main}