SQLSTATE[HY000] [1040] Too many connections<br><pre>#0 [internal function]: PDO->__construct('mysql:host=loca...', 'kluat.ou.edu.vn', 'P@ssW0rd)!@#$%^', Array)
#1 [internal function]: Phalcon\Db\Adapter\Pdo->connect(Array)
#2 D:\Website\khoaluat.ou.edu.vn\app\config\services.php(72): Phalcon\Db\Adapter\Pdo->__construct(Array)
#3 [internal function]: Closure->{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(SysConfigs), NULL)
#8 [internal function]: Phalcon\Mvc\Model\Manager->getReadConnection(Object(SysConfigs))
#9 [internal function]: Phalcon\Mvc\Model->getReadConnection()
#10 [internal function]: Phalcon\Mvc\Model\Query->_executeSelect(Array, NULL, NULL)
#11 D:\Website\khoaluat.ou.edu.vn\app\config\dbconfig.php(10): Phalcon\Mvc\Model\Query->execute()
#12 D:\Website\khoaluat.ou.edu.vn\public\index.php(29): include('D:\\Website\\khoa...')
#13 {main}</pre>