problemer med tomcat

hvad er galt med min tomcat webserver og hvordan løser jeg problemet ? jeg får denne fejl:



HTTP Status 500 -

--------------------------------------------------------------------------------

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: com/sun/jimi/core/JimiException
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


root cause

java.lang.NoClassDefFoundError: com/sun/jimi/core/JimiException
    java.lang.Class.getDeclaredConstructors0(Native Method)
    java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
    java.lang.Class.getConstructor0(Unknown Source)
    java.lang.Class.getConstructor(Unknown Source)
    org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1218)
    org.apache.jasper.compiler.Node$UseBean.accept(Node.java:1116)
    org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
    org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
    org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
    org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
    org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
    org.apache.jasper.compiler.Generator.generate(Generator.java:3270)
    org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:189)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:286)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
    org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:556)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:296)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


note The full stack trace of the root cause is available in the Apache Tomcat/5.5.8 logs.