SQLSTATE[HY000] [2002] Connection refused
#0 [internal function]: PDO->__construct('mysql:host=127....', 'caizhou', 'xf2A9qs3kj5m', Array)
#1 [internal function]: Phalcon\Db\Adapter\Pdo->connect(Array)
#2 /data/wwwroot/caizhou/wwwroot/apps/frontend/Module.php(75): Phalcon\Db\Adapter\Pdo->__construct(Array)
#3 [internal function]: Frontend\Module->Frontend\{closure}()
#4 [internal function]: Phalcon\Di\Service->resolve(NULL, Object(Phalcon\Di\FactoryDefault))
#5 [internal function]: Phalcon\Di->get('db', NULL)
#6 [internal function]: Phalcon\Di->getShared('db')
#7 [internal function]: Phalcon\Mvc\Model\Manager->_getConnection(Object(Frontend\Models\Tag), NULL)
#8 [internal function]: Phalcon\Mvc\Model\Manager->getReadConnection(Object(Frontend\Models\Tag))
#9 [internal function]: Phalcon\Mvc\Model->getReadConnection()
#10 [internal function]: Phalcon\Mvc\Model\Query->getReadConnection(Object(Frontend\Models\Tag), Array, NULL, NULL)
#11 [internal function]: Phalcon\Mvc\Model\Query->_executeSelect(Array, NULL, NULL)
#12 [internal function]: Phalcon\Mvc\Model\Query->execute()
#13 /data/wwwroot/caizhou/wwwroot/apps/frontend/models/Tag.php(100): Phalcon\Mvc\Model::find(NULL)
#14 /data/wwwroot/caizhou/wwwroot/apps/frontend/controllers/RegController.php(23): Frontend\Models\Tag::find()
#15 [internal function]: Frontend\Controllers\RegController->indexAction()
#16 [internal function]: Phalcon\Dispatcher->callActionMethod(Object(Frontend\Controllers\RegController), 'indexAction', Array)
#17 [internal function]: Phalcon\Dispatcher->dispatch()
#18 /data/wwwroot/caizhou/wwwroot/public/index.php(41): Phalcon\Mvc\Application->handle()
#19 {main}
{"response":"fail","code":10000}