This is the full trace of error:
2016/10/21 04:57:15 [error] [exception.CException] exception 'CException' with message 'Map data must be an array or an object implementing Traversable.' in /my_mw/apps/common/framework/collections/CMap.php:263
Stack trace:
#0 /my_mw/apps/common/components/db/behaviors/ModelMetaDataBehavior.php(30): CMap->mergeWith(false)
#1 [internal function]: ModelMetaDataBehavior->getModelMetaData()
#2 /my_mw/apps/common/framework/base/CComponent.php(261): call_user_func_array(Array, Array)
#3 /my_mw/apps/common/framework/db/ar/CActiveRecord.php(227): CComponent->__call('getModelMetaDat...', Array)
#4 /my_mw/apps/common/models/DeliveryServer.php(355): CActiveRecord->__call('getModelMetaDat...', Array)
#5 /my_mw/apps/common/models/DeliveryServer.php(355): DeliveryServer->getModelMetaData()
#6 /my_mw/apps/common/framework/db/ar/CActiveRecord.php(1871): DeliveryServer->afterFind()
#7 /my_mw/apps/common/framework/db/ar/CActiveRecord.php(1892): CActiveRecord->populateRecord(Array, true)
#8 /my_mw/apps/common/framework/db/ar/CActiveRecord.php(1356): CActiveRecord->populateRecords(Array, true, NULL)
#9 /my_mw/apps/common/framework/db/ar/CActiveRecord.php(1475): CActiveRecord->query(Object(CDbCriteria), true)
#10 /my_mw/apps/common/framework/web/CActiveDataProvider.php(199): CActiveRecord->findAll(Object(CDbCriteria))
#11 /my_mw/apps/common/framework/web/CDataProvider.php(168): CActiveDataProvider->fetchData()
#12 /my_mw/apps/common/framework/zii/widgets/CBaseListView.php(125): CDataProvider->getData()
#13 /my_mw/apps/common/framework/zii/widgets/grid/CGridView.php(339): CBaseListView->init()
#14 /my_mw/apps/common/framework/web/CBaseController.php(147): CGridView->init()
#15 /my_mw/apps/common/framework/web/CBaseController.php(180): CBaseController->createWidget('zii.widgets.gri...', Array)
#16 /my_mw/apps/backend/views/delivery_servers/list.php(186): CBaseController->widget('zii.widgets.gri...', Array)
#17 /my_mw/apps/common/framework/web/CBaseController.php(126): require('/path/to/my_mw...')
#18 /my_mw/apps/common/components/web/BaseController.php(245): CBaseController->renderInternal('/path/to/my_mw...', Array, true)
#19 /my_mw/apps/common/framework/web/CBaseController.php(95): BaseController->renderInternal('/path/to/my_mw...', Array, true)
#20 /my_mw/apps/common/framework/web/CController.php(869): CBaseController->renderFile('/path/to/my_mw...', Array, true)
#21 /my_mw/apps/common/framework/web/CController.php(782): CController->renderPartial('list', Array, true)
#22 /my_mw/apps/backend/controllers/Delivery_serversController.php(61): CController->render('list', Array)
#23 /my_mw/apps/common/framework/web/actions/CInlineAction.php(49): Delivery_serversController->actionIndex()
#24 /my_mw/apps/common/framework/web/CController.php(308): CInlineAction->runWithParams(Array)
#25 /my_mw/apps/common/framework/web/filters/CFilterChain.php(133): CController->runAction(Object(CInlineAction))
#26 /my_mw/apps/common/framework/web/CController.php(291): CFilterChain->run()
#27 /my_mw/apps/common/framework/web/CController.php(265): CController->runActionWithFilters(Object(CInlineAction), Array)
#28 /my_mw/apps/common/framework/web/CWebApplication.php(282): CController->run('index')
#29 /my_mw/apps/common/framework/web/CWebApplication.php(141): CWebApplication->runController('delivery_server...')
#30 /my_mw/apps/common/framework/base/CApplication.php(185): CWebApplication->processRequest()
#31 /my_mw/apps/init.php(227): CApplication->run()
#32 /my_mw/backend/index.php(18): require_once('/path/to/my_mw...')
#33 {main}
REQUEST_URI=/backend/delivery-servers/index
HTTP_REFERER=
http://mydomain.com/backend/account/index
