weblogic出错

我的程序报出下列错误,会是什么原因阿
Error 500--Internal Server Error
From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:
10.5.1 500 Internal Server Error
The server encountered an unexpected condition which prevented it from fulfilling the request.
[274 byte] By [camellia243-camellia] at [2008-2-15]