Class: Error:

Exception: Attempt to assign property "readerNum" on null

File=/var/www/loserhub/app/modules/frontend/controllers/GroupsController.php Line=2154

#0 [internal function]: Loserhub\Frontend\Controllers\GroupsController->imagedetailAction('8a5d282809ec465...', '3e2de694b94088b...')
#1 [internal function]: Phalcon\Dispatcher\AbstractDispatcher->callActionMethod(Object(Loserhub\Frontend\Controllers\GroupsController), 'imagedetailActi...', Array)
#2 [internal function]: Phalcon\Dispatcher\AbstractDispatcher->dispatch()
#3 /var/www/loserhub/app/bootstrap_web.php(100): Phalcon\Mvc\Application->handle('/groups/imagede...')
#4 /var/www/loserhub/public/index.php(17): require('/var/www/loserh...')
#5 {main}