本地安装ss ，无法正常连接到ucenter ，附错误代码

成功安装ucenter后，从ucenter创始人管理中心，应用中心url安装SS，出现了如下错误：

UCenter无法正常连接，返回错误 ( HTTP/1.1 200 OK Server: Microsoft-IIS/5.1 Date: Tue, 05 Jul 2011 06:50:04 GMT Content-type: text/html
Warning: PHP Startup: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'UTC' for '8.0/no DST' instead in Unknown on line 0

本地测试，请教这到底是什么原因？？谢谢。