org.apache.jasper.JasperException: Unable to compile class for JSP:

An error occurred at line: 21 in the jsp file: /templates/tigercam_slim/english/privatemessages.jsp
The method getPrivateMessagesUrl(int, null) is undefined for the type privatemessages_jsp.PrivateMessagesHelper
18: <%if(data.report.records.hasNext()) {%>
19: <tr>
20:   <td class="contentdelimiter">
21:     <form method="post" action="<%=PrivateMessagesHelper.getPrivateMessagesUrl(data.ownerType, null)%>">
22:     <input type="hidden" name="command" value="" />
23:     <table class="table">
24:     <tr class="header">


An error occurred at line: 40 in the jsp file: /templates/tigercam_slim/english/privatemessages.jsp
The method getPrivateMessagesUrl(int, String) is undefined for the type privatemessages_jsp.PrivateMessagesHelper
37: <%
38:     while(data.report.records.hasNext()) {
39:       PrivateMessagesReport.Record record = (PrivateMessagesReport.Record)data.report.records.next();
40:       String url = PrivateMessagesHelper.getPrivateMessagesUrl(data.ownerType, "/write?"+PrivateMessage.FIELD_THREAD_ID+"="+record.threadId+messageTypeQuery);
41: %>
42:     <tr <%=record.newCount > 0 ?"style='font-weight:bold'":""%>>
43:       <td>


Stacktrace:
	at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:102)
	at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:212)
	at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:457)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:377)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:349)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:333)
	at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:600)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:368)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:726)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:469)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:394)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:311)
	at com.stc.web.Page.includeTemplate(Page.java:683)
	at org.softservice.web.PrivateMessagesPage.executePermited(PrivateMessagesPage.java:162)
	at org.softservice.web.customer.PermissionCheckerPage.executeUnsafe(PermissionCheckerPage.java:299)
	at org.softservice.web.ErrorHandlerPage.executeImpl(ErrorHandlerPage.java:28)
	at com.stc.web.Page.execute(Page.java:897)
	at com.stc.web.VirtualDirectory.executeImpl(VirtualDirectory.java:105)
	at com.stc.web.Page.execute(Page.java:897)
	at com.stc.web.PageWrapper.service(PageWrapper.java:52)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:789)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1437)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:748)