There has been an Error!

Reason:
        org.apache.turbine.util.TurbineException: Error rendering Velocity template: screens/EcCategoryCoursesView.vm: Invocation of method 'chop' in  class com.insite.infoservis.utils.velocity.TextFormatHelper threw exception class java.lang.NullPointerException : null
      

Get/Post Data:

id = 3500
template = EcCategoryCoursesView

Stacktrace:

      
           org.apache.velocity.exception.MethodInvocationException: Invocation of method 'chop' in  class com.insite.infoservis.utils.velocity.TextFormatHelper threw exception class java.lang.NullPointerException : null
	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:232)
	at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:175)
	at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:220)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
	at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:172)
	at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:114)
	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:55)
	at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:166)
	at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:114)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
	at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:172)
	at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:114)
	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:55)
	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:70)
	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:55)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:89)
	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:55)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:89)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
	at org.apache.velocity.Template.merge(Template.java:256)
	at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:449)
rethrown as org.apache.turbine.util.TurbineException: Error rendering Velocity template: screens/EcCategoryCoursesView.vm: Invocation of method 'chop' in  class com.insite.infoservis.utils.velocity.TextFormatHelper threw exception class java.lang.NullPointerException : null
	at com.insite.infoservis.services.velocity.InfoservisVelocityService.renderingError(InfoservisVelocityService.java:573)
	at com.insite.infoservis.services.velocity.InfoservisVelocityService.decodeRequest(InfoservisVelocityService.java:510)
	at com.insite.infoservis.services.velocity.InfoservisVelocityService.handleRequest(InfoservisVelocityService.java:303)
	at org.apache.turbine.services.velocity.TurbineVelocity.handleRequest(TurbineVelocity.java:110)
	at org.apache.turbine.modules.screens.VelocityScreen.buildTemplate(VelocityScreen.java:151)
	at org.apache.turbine.modules.screens.TemplateScreen.doBuild(TemplateScreen.java:130)
	at org.apache.turbine.modules.Screen.build(Screen.java:99)
	at org.apache.turbine.modules.ScreenLoader.eval(ScreenLoader.java:129)
	at com.insite.nemeton.modules.navigations.DomainAwareTemplateScreen.doRender(DomainAwareTemplateScreen.java:138)
	at com.insite.nemeton.modules.navigations.DomainAwareTemplateScreen.toString(DomainAwareTemplateScreen.java:128)
	at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:291)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
	at org.apache.velocity.Template.merge(Template.java:256)
	at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:449)
	at com.insite.infoservis.services.velocity.InfoservisVelocityService.decodeRequest(InfoservisVelocityService.java:508)
	at com.insite.infoservis.services.velocity.InfoservisVelocityService.handleRequest(InfoservisVelocityService.java:303)
	at org.apache.turbine.services.velocity.TurbineVelocity.handleRequest(TurbineVelocity.java:110)
	at com.insite.nemeton.modules.layouts.NemetonVelocityLayout.outputMinimizedScreenContent(NemetonVelocityLayout.java:164)
	at com.insite.nemeton.modules.layouts.NemetonVelocityLayout.doBuild(NemetonVelocityLayout.java:138)
	at org.apache.turbine.modules.Layout.build(Layout.java:91)
	at org.apache.turbine.modules.LayoutLoader.exec(LayoutLoader.java:123)
	at org.apache.turbine.modules.pages.DefaultPage.doBuild(DefaultPage.java:166)
	at org.apache.turbine.modules.Page.build(Page.java:90)
	at org.apache.turbine.modules.PageLoader.exec(PageLoader.java:123)
	at org.apache.turbine.Turbine.doGet(Turbine.java:565)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at com.insite.infoservis.utils.HttpCachingHeadersFilter.doFilter(HttpCachingHeadersFilter.java:126)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at cz.educity.stats.filters.StatsLoggingFilter.doFilter(StatsLoggingFilter.java:128)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at cz.educity.tracking.TrackingValidationFilter.continueToFilterChain(TrackingValidationFilter.java:75)
	at cz.educity.tracking.TrackingValidationFilter.doFilter(TrackingValidationFilter.java:71)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at com.insite.infoservis.SiteClassificationFilter.doFilter(SiteClassificationFilter.java:158)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:957)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
	at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:190)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:745)
      
        
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