Msg: Call to a member function isSystem() on null
File: 0
Line: 53
Trace:
#0 /var/www/neighbours/backend-phalcon/core/app/library/HelperModel.php(193): App\Models\PostMessages->getAuthor()
#1 /var/www/neighbours/backend-phalcon/core/app/library/HelperModel.php(82): Core\Library\HelperModel::filterOne()
#2 /var/www/neighbours/backend-phalcon/core/app/library/HelperModel.php(194): Core\Library\HelperModel::filter()
#3 /var/www/neighbours/backend-phalcon/core/app/library/HelperModel.php(85): Core\Library\HelperModel::filterOne()
#4 /var/www/neighbours/backend-phalcon/app/controllers/site/LocalsController.php(159): Core\Library\HelperModel::filter()
#5 [internal function]: App\Controllers\Site\LocalsController->itemGuestAction()
#6 [internal function]: Phalcon\Dispatcher\AbstractDispatcher->callActionMethod()
#7 [internal function]: Phalcon\Dispatcher\AbstractDispatcher->dispatch()
#8 /var/www/neighbours/backend-phalcon/public/index.php(105): Phalcon\Mvc\Application->handle()
#9 {main}