linux 安装，window访问

windows  IE11   URL: http://172.16.39.45:8001/       点击【开源版】，出现白屏  修改app/zentao/config/my.php debug 改成true 重新访问 http://172.16.39.45:8001/zentao/  报错:
Fatal error: Uncaught Error: Call to a member function query() on null in /opt/zbox/app/zentao/lib/base/dao/dao.class.php:713 Stack trace: #0 /opt/zbox/app/zentao/lib/base/dao/dao.class.php(794): baseDAO->query() #1 /opt/zbox/app/zentao/module/company/model.php(49): baseDAO->fetch() #2 /opt/zbox/app/zentao/module/common/model.php(66): companyModel->getFirst() #3 /opt/zbox/app/zentao/module/common/model.php(27): commonModel->setCompany() #4 /opt/zbox/app/zentao/framework/base/router.class.php(1168): commonModel->__construct() #5 /opt/zbox/app/zentao/www/index.php(36): baseRouter->loadCommon() #6 {main} thrown in /opt/zbox/app/zentao/lib/base/dao/dao.class.php on line 713