外墙涂刷防大理石涂料:163出了一个百事我创的栏目，但是，我每次进去都会出错， 到底什么原因啊？

百事我创的地址是：http://pepsi.163.com/

每次，我要点：我要帮别人评分的时候，进去后，开始评分，写完评语的时候，为什么都会出错，提示：
500 Servlet Exception
java.lang.IllegalArgumentException: illegal cookie name: ???????????????±<br>http://jay.pepsi.163.com/article.jsp?id
at javax.servlet.http.Cookie.<init>(Cookie.java:103)
at com.caucho.server.http.Request.fillCookie(Request.java:1145)
at com.caucho.server.http.Request.fillCookies(Request.java:1049)
at com.caucho.server.http.Request.getCookie(Request.java:1023)
at com.caucho.server.http.Request.findSessionIdFromCookie(Request.java:1284)
at com.caucho.server.http.Request.getRequestedSessionId(Request.java:1246)
at com.caucho.server.http.AbstractRequest.createSession(AbstractRequest.java:424)
at com.caucho.server.http.Request.getSession(Request.java:1186)
at com.caucho.jsp.QPageContext.initialize(QPageContext.java:124)
at com.caucho.jsp.QJspFactory.getPageContext(QJspFactory.java:79)
at _count_0re__jsp._jspService(_count_0re__jsp.java:19)
at com.caucho.jsp.JavaPage.service(JavaPage.java:75)
at com.caucho.jsp.Page.subservice(Page.java:506)
at com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:182)
at com.caucho.server.http.Invocation.service(Invocation.java:315)
at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135)
at com.caucho.server.http.RunnerRequest.handleRequest(RunnerRequest.java:344)
at com.caucho.server.http.RunnerRequest.handleConnection(RunnerRequest.java:274)
at com.caucho.server.TcpConnection.run(TcpConnection.java:139)
at java.lang.Thread.run(Thread.java:534)

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Resin 2.1.10 (built Wed Jun 18 09:16:53 PDT 2003)

为什么会这样啊？提示了后，就再也进不去看别人的稿子了。。

帮我啊。。。谁帮我解决一下。