InvalidArgumentException: Attempted to convert NULL to string/binary [feature_media] in src/XF/Mvc/Entity/Entity.php at line 685
XF\Mvc\Entity\Entity->_castValueToType() insrc/XF/Mvc/Entity/Entity.php at line 572
XF\Mvc\Entity\Entity->set() in src/XF/Mvc/Entity/Entity.php at line 671
XF\Mvc\Entity\Entity->bulkSet() insrc/addons/EWR/Porta/Import/Importer/Porta121.php at line 168
EWR\Porta\Import\Importer\Porta121->stepFeatures() insrc/XF/Import/Runner.php at line 160
XF\Import\Runner->runStep() in src/XF/Import/Runner.php at line 74
XF\Import\Runner->run() in src/XF/Admin/Controller/Import.php at line231
XF\Admin\Controller\Import->actionRun() in src/XF/Mvc/Dispatcher.phpat line 249
XF\Mvc\Dispatcher->dispatchClass() in src/XF/Mvc/Dispatcher.php at line 87
XF\Mvc\Dispatcher->dispatchLoop() in src/XF/Mvc/Dispatcher.php at line 41
XF\Mvc\Dispatcher->run() in src/XF/App.php at line 1880
XF\App->run() in src/XF.php at line 328
XF::runApp() in admin.php at line 13