禅道数据库中zt_config表没有了请问怎么恢复呢？

访问 http://127.0.0.1:1024/zentao  和 http://127.0.0.1:1024/zentao/upgrade.php 都报这个错

11:03:01 Uncaught PDOException: SQLSTATE[42S02]: Base table or view not found: 1146 Table 'zentao.zt_config' doesn't exist in /opt/zbox/app/zentao/framework/router.class.php:45

Stack trace:

#0 /opt/zbox/app/zentao/framework/router.class.php(45): PDO->query('SELECT value FR...')

#1 /opt/zbox/app/zentao/framework/base/router.class.php(374): router->loadLang('common')

#2 /opt/zbox/app/zentao/framework/base/router.class.php(392): baseRouter->__construct('pms', '/opt/zbox/app/z...')

#3 /opt/zbox/app/zentao/www/index.php(30): baseRouter::createApp('pms', '/opt/zbox/app/z...', 'router')

#4 {main}

thrown in /opt/zbox/app/zentao/framework/router.class.php on line 45 when visiting