刷新页面经常会出现（其中*隐去实际地址）

CGI/PHP程序错误: 实际用户ID无法改变！

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实际用户ID无法改变！


服务器端配置：

Server Administrator/Contact: [no address given]
Server Name: ***.*****.***
Server Port: 80
Server Protocol: HTTP/1.1

访问请求数据：

User Agent/Browser: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; .NET CLR 1.1.4322)
Request Method: GET
Remote Address: ***.***.***.**
Remote Port: 1206
Query String: **********
Referring Page: **********

或者是

Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, [no address given] and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

请问这是怎么回事，是服务器配置的问题吗？我用的是虚拟空间,谢谢！不胜感激！！