500 Internal Server Error

java.lang.NullPointerException
	at _icomitrax._errorpage._jspService(_errorpage.java:56)
	[SRC:/iCOMITRAX/errorpage.jsp:19]
	at com.orionserver[Oracle Application Server Containers for J2EE 10g (10.1.2.3.0)].http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
	at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:356)
	at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:498)
	at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:402)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.3.0)].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:835)
	at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.3.0)].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:341)
	at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.3.0)].server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java:230)
	at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.3.0)].server.http.EvermindPageContext.handlePageThrowable(EvermindPageContext.java:594)
	at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.3.0)].server.http.EvermindPageContext.handlePageException(EvermindPageContext.java:556)
	at _icomitrax._Main._jspService(_Main.java:145)
	[SRC:/iCOMITRAX/Main.jsp]
	at com.orionserver[Oracle Application Server Containers for J2EE 10g (10.1.2.3.0)].http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
	at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:356)
	at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:498)
	at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:402)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.3.0)].server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
	at iCOMITRAX.Filter.CacheFilter.doFilter(CacheFilter.java:32)
	at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.3.0)].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:674)
	at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.3.0)].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:341)
	at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.3.0)].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:852)
	at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.3.0)].server.http.AJPRequestHandler.run(AJPRequestHandler.java:231)
	at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.3.0)].server.http.AJPRequestHandler.run(AJPRequestHandler.java:136)
	at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.3.0)].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
	at java.lang.Thread.run(Thread.java:579)