Ошибка 500

Call to a member function children() on null

Call to a member function children() on null
Error
500
/home/a/axonplus/axonplus.ru/public_html/protected/controllers/ServiceController.php
162

#0 [internal function]: ServiceController->actionView(0, Array) #1 /home/a/axonplus/axonplus.ru/public_html/vendor/yiisoft/yii/framework/web/actions/CAction.php(109): ReflectionMethod->invokeArgs(Object(ServiceController), Array) #2 /home/a/axonplus/axonplus.ru/public_html/vendor/yiisoft/yii/framework/web/actions/CInlineAction.php(47): CAction->runWithParamsInternal(Object(ServiceController), Object(ReflectionMethod), Array) #3 /home/a/axonplus/axonplus.ru/public_html/vendor/yiisoft/yii/framework/web/CController.php(308): CInlineAction->runWithParams(Array) #4 /home/a/axonplus/axonplus.ru/public_html/vendor/yiisoft/yii/framework/web/filters/CFilterChain.php(134): CController->runAction(Object(CInlineAction)) #5 /home/a/axonplus/axonplus.ru/public_html/vendor/yiisoft/yii/framework/web/filters/CFilter.php(40): CFilterChain->run() #6 /home/a/axonplus/axonplus.ru/public_html/vendor/yiisoft/yii/framework/web/filters/CFilterChain.php(131): CFilter->filter(Object(CFilterChain)) #7 /home/a/axonplus/axonplus.ru/public_html/vendor/yiisoft/yii/framework/web/CController.php(291): CFilterChain->run() #8 /home/a/axonplus/axonplus.ru/public_html/vendor/yiisoft/yii/framework/web/CController.php(265): CController->runActionWithFilters(Object(CInlineAction), Array) #9 /home/a/axonplus/axonplus.ru/public_html/vendor/yiisoft/yii/framework/web/CWebApplication.php(282): CController->run('view') #10 /home/a/axonplus/axonplus.ru/public_html/vendor/yiisoft/yii/framework/web/CWebApplication.php(141): CWebApplication->runController('service/view') #11 /home/a/axonplus/axonplus.ru/public_html/vendor/yiisoft/yii/framework/base/CApplication.php(185): CWebApplication->processRequest() #12 /home/a/axonplus/axonplus.ru/public_html/index.php(26): CApplication->run() #13 {main}