Expression productCategoryId is undefined on line 1, column 29 in component://ecommerce/webapp/ecommerce/content/topMidBar.ftl. The problematic instruction: ---------- ==> ${productCategoryId} [on line 1, column 27 in component://ecommerce/webapp/ecommerce/content/topMidBar.ftl] ---------- Java backtrace for programmers: ---------- freemarker.core.InvalidReferenceException: Expression productCategoryId is undefined on line 1, column 29 in component://ecommerce/webapp/ecommerce/content/topMidBar.ftl. at freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:125) at freemarker.core.Expression.getStringValue(Expression.java:118) at freemarker.core.Expression.getStringValue(Expression.java:93) at freemarker.core.DollarVariable.accept(DollarVariable.java:76) at freemarker.core.Environment.visit(Environment.java:221) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:221) at freemarker.core.Environment.renderElementToString(Environment.java:1594) at freemarker.core.StringLiteral.getStringValue(StringLiteral.java:101) at freemarker.core.StringLiteral._getAsTemplateModel(StringLiteral.java:86) at freemarker.core.Expression.getAsTemplateModel(Expression.java:89) at freemarker.core.Assignment.accept(Assignment.java:90) at freemarker.core.Environment.visit(Environment.java:221) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:221) at freemarker.core.Environment.process(Environment.java:199) at org.ofbiz.base.util.template.FreeMarkerWorker.renderTemplate(FreeMarkerWorker.java:257) at org.ofbiz.widget.screen.HtmlWidget.renderHtmlTemplate(HtmlWidget.java:225) at org.ofbiz.widget.screen.HtmlWidget$HtmlTemplate.renderWidgetString(HtmlWidget.java:270) at org.ofbiz.widget.screen.HtmlWidget.renderWidgetString(HtmlWidget.java:130) at org.ofbiz.widget.screen.ModelScreenWidget$PlatformSpecific.renderWidgetString(ModelScreenWidget.java:915) at org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:104) at org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:191) at org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:396) at org.ofbiz.widget.screen.ScreenFactory.renderReferencedScreen(ScreenFactory.java:216) at org.ofbiz.widget.screen.ModelScreenWidget$IncludeScreen.renderWidgetString(ModelScreenWidget.java:513) at org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:104) at org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:191) at org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:396) at org.ofbiz.widget.screen.ScreenFactory.renderReferencedScreen(ScreenFactory.java:216) at org.ofbiz.widget.screen.ModelScreenWidget$IncludeScreen.renderWidgetString(ModelScreenWidget.java:513) at org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:104) at org.ofbiz.widget.screen.ModelScreenWidget$Container.renderWidgetString(ModelScreenWidget.java:260) at org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:104) at org.ofbiz.widget.screen.ModelScreenWidget$Container.renderWidgetString(ModelScreenWidget.java:260) at org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:104) at org.ofbiz.widget.screen.ModelScreenWidget$Container.renderWidgetString(ModelScreenWidget.java:260) at org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:104) at org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:191) at org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:104) at org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:191) at org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:396) at org.ofbiz.widget.screen.ScreenFactory.renderReferencedScreen(ScreenFactory.java:216) at org.ofbiz.widget.screen.ModelScreenWidget$DecoratorScreen.renderWidgetString(ModelScreenWidget.java:580) at org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:104) at org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:191) at org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:396) at org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:135) at org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:97) at org.ofbiz.widget.screen.MacroScreenViewHandler.render(MacroScreenViewHandler.java:104) at org.ofbiz.webapp.control.RequestHandler.renderView(RequestHandler.java:875) at org.ofbiz.webapp.control.RequestHandler.doRequest(RequestHandler.java:592) at org.ofbiz.webapp.control.ControlServlet.doGet(ControlServlet.java:224) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.ofbiz.webapp.control.ContextFilter.doFilter(ContextFilter.java:337) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.ofbiz.content.content.ContentUrlFilter.doFilter(ContentUrlFilter.java:106) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:200) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:834)