请问到第四步：安装时，就显示内部服务器错误该怎么解决？

PHP Warning: mysqli::__construct(): (HY000/1045): Access denied for user ‘zhaowei’@’localhost’ (using password: YES) in C:\xcx\install\webapp\modules\Default\actions\step3Action.class.php on line 142 PHP Notice: Trying to get property ‘server_info’ of non-object in C:\xcx\install\webapp\modules\Default\actions\step3Action.class.php on line 68