Redis server went away
#0 /home/www/schoolhome/src/schoolhome/app/library/util/Redis.php(41): Redis->auth('ZhiGan_KeJi_!@#...')
#1 /home/www/schoolhome/src/schoolhome/app/config/services.php(179): Util\Redis->__construct(Array)
#2 [internal function]: {closure}()
#3 [internal function]: Phalcon\Di\Service->resolve(NULL, Object(Phalcon\Di\FactoryDefault))
#4 [internal function]: Phalcon\Di->get('redis', NULL)
#5 /home/www/schoolhome/modules/Base/Server/BaseServer.php(35): Phalcon\Di->getShared('redis')
#6 /home/www/schoolhome/modules/Homework/Server/ClassCertificateServer.php(23): Modules\Base\Server\BaseServer::getRedis()
#7 /home/www/schoolhome/modules/Homework/Server/ClassCertificateServer.php(143): Modules\Homework\Server\ClassCertificateServer::getClassCertificate('128', '122')
#8 /home/www/schoolhome/src/schoolhome/app/controllers/CourseController.php(146): Modules\Homework\Server\ClassCertificateServer::getCertificateCondition('128', '122')
#9 [internal function]: CourseController->courseDetailAction()
#10 [internal function]: Phalcon\Dispatcher->dispatch()
#11 /home/www/schoolhome/src/schoolhome/public/index.php(54): Phalcon\Mvc\Application->handle()
#12 {main}