Erron on rendering PDF, play framework

play.exceptions.UnexpectedException: Unexpected Error
	at play.modules.pdf.RenderPDFTemplate.apply(RenderPDFTemplate.java:102)
	at play.mvc.ActionInvoker.invoke(ActionInvoker.java:246)
	at play.server.ServletWrapper$ServletInvocation.execute(ServletWrapper.java:557)
	at play.Invoker$Invocation.run(Invoker.java:278)
	at play.server.ServletWrapper$ServletInvocation.run(ServletWrapper.java:548)
	at play.Invoker.invokeInThread(Invoker.java:68)
	at play.server.ServletWrapper.service(ServletWrapper.java:142)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Unknown Source)
Caused by: org.allcolor.yahp.converter.IHtmlToPdfTransformer$CConvertException: ERROR: An unhandled exception occured: org.xhtmlrenderer.render.BlockBox cannot be cast to org.xhtmlrenderer.newtable.TableBox
	at org.allcolor.yahp.cl.converter.CHtmlToPdfFlyingSaucerTransformer.transform(CHtmlToPdfFlyingSaucerTransformer.java:809)
	at play.modules.pdf.RenderPDFTemplate.renderDoc(RenderPDFTemplate.java:142)
	at play.modules.pdf.RenderPDFTemplate.renderPDF(RenderPDFTemplate.java:118)
	at play.modules.pdf.RenderPDFTemplate.apply(RenderPDFTemplate.java:100)
	... 19 more
Caused by: java.lang.ClassCastException: org.xhtmlrenderer.render.BlockBox cannot be cast to org.xhtmlrenderer.newtable.TableBox
	at org.xhtmlrenderer.layout.BoxCollector.collect(BoxCollector.java:127)
	at org.xhtmlrenderer.layout.BoxCollector.collect(BoxCollector.java:139)
	at org.xhtmlrenderer.layout.BoxCollector.collect(BoxCollector.java:139)
	at org.xhtmlrenderer.layout.BoxCollector.collect(BoxCollector.java:139)
	at org.xhtmlrenderer.layout.BoxCollector.collect(BoxCollector.java:46)
	at org.xhtmlrenderer.layout.Layer.paint(Layer.java:314)
	at org.xhtmlrenderer.pdf.ITextRenderer.paintPage(ITextRenderer.java:391)
	at org.xhtmlrenderer.pdf.ITextRenderer.writePDF(ITextRenderer.java:355)
	at org.xhtmlrenderer.pdf.ITextRenderer.createPDF(ITextRenderer.java:322)
	at org.xhtmlrenderer.pdf.ITextRenderer.createPDF(ITextRenderer.java:287)
	at org.allcolor.yahp.cl.converter.CHtmlToPdfFlyingSaucerTransformer.transform(CHtmlToPdfFlyingSaucerTransformer.java:790)
	... 22 more