Oracle.cabo.servlet.event.UnhandledEventException when deploying to Tomcat

I have developed an ADF/UIX Application, tested it in JDeveloper 10.1.2.1, but when I deploy this application to Tomcat 5.0 I got
oracle.cabo.servlet.event.UnhandledEventException
oracle.cabo.servlet.event.UnhandledEventException,page=Page[name=login],event=PageEvent[name=VerifySignin,VB_password1=doffen,VB_email1=[email protected],target=hovedside,loginUIModelState__=789C73720E0EB1B235F0C94FCFCC734A4DCCF32C492D4A2CC92FB2D575D1353030303480004747675717206D6A6E6E60021533D081EB72492C4974CECF2B29CACF892FCACF2F01994294090033072308,_secrets= VB_password1 ]
     at oracle.cabo.servlet.event.BasePageFlowEngine.handleRequest(Unknown Source)
     at oracle.cabo.servlet.AbstractPageBroker.handleRequest(Unknown Source)
     at oracle.cabo.servlet.ui.BaseUIPageBroker.handleRequest(Unknown Source)
     at oracle.cabo.servlet.PageBrokerHandler.handleRequest(Unknown Source)
     at oracle.cabo.servlet.UIXServlet.doGet(Unknown Source)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
What can be wrong?
Regards
Robert Hetleflåt

To enable someone to help you with a solution, you need to provide additonal information.
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