EMISSOR GRATUITO- ERRO INESPERADO

Estou tentando emitir Nfs no emissor gratuito e esta aparecendo erro inesperado ao validar, alguém sabe o que pode ser feito para corrigir esse erro?

Erro do emissor:
A chave "TNFe.SEQUENCE.infNFe.SEQUENCE.pag.SEQUENCE.detPag.SEQUENCE.vPag.NOME_ABA" não existe no arquivo dsen_campos.properties
java.lang.Throwable: A chave "TNFe.SEQUENCE.infNFe.SEQUENCE.pag.SEQUENCE.detPag.SEQUENCE.vPag.NOME_ABA" não existe no arquivo dsen_campos.properties
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.d(NotaFiscalValidationDocumentV3_0.java:368)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.a(NotaFiscalValidationDocumentV3_0.java:353)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.a(NotaFiscalValidationDocumentV3_0.java:379)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.a(NotaFiscalValidationDocumentV3_0.java:291)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.a(NotaFiscalValidationDocumentV3_0.java:252)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.a(NotaFiscalValidationDocumentV3_0.java:782)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.b(NotaFiscalValidationDocumentV3_0.java:903)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.a(NotaFiscalValidationDocumentV3_0.java:713)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.b(NotaFiscalValidationDocumentV3_0.java:890)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.a(NotaFiscalValidationDocumentV3_0.java:768)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.b(NotaFiscalValidationDocumentV3_0.java:903)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.a(NotaFiscalValidationDocumentV3_0.java:713)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.a(NotaFiscalValidationDocumentV3_0.java:659)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.b(NotaFiscalValidationDocumentV3_0.java:906)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.a(NotaFiscalValidationDocumentV3_0.java:768)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.b(NotaFiscalValidationDocumentV3_0.java:903)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.a(NotaFiscalValidationDocumentV3_0.java:713)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.a(NotaFiscalValidationDocumentV3_0.java:659)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidationDocumentV3_0.validarDocumentoNotaFiscalXML(NotaFiscalValidationDocumentV3_0.java:97)
    at br.gov.sp.fazenda.dsen.model.business.validation.NotaFiscalValidation.validarDocumentoNotaFiscalXML(NotaFiscalValidation.java:35)
    at br.gov.sp.fazenda.dsen.model.business.NotaFiscalBusiness.validar(NotaFiscalBusiness.java:617)
    at br.gov.sp.fazenda.dsen.model.business.NotaFiscalBusiness$$EnhancerByCGLIB$$ceaad113.CGLIB$validar$1(<generated>)
    at br.gov.sp.fazenda.dsen.model.business.NotaFiscalBusiness$$EnhancerByCGLIB$$ceaad113$$FastClassByCGLIB$$22d49c5c.invoke(<generated>)
    at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:167)
    at br.gov.sp.fazenda.dsge.model.dao.util.DSGEDAOInterceptorHelper.intercept(DSGEDAOInterceptorHelper.java:66)
    at br.gov.sp.fazenda.dsen.model.business.NotaFiscalBusiness$$EnhancerByCGLIB$$ceaad113.validar(<generated>)
    at br.gov.sp.fazenda.dsen.model.business.NotaFiscalBusiness.validar(NotaFiscalBusiness.java:686)
    at br.gov.sp.fazenda.dsen.model.business.NotaFiscalBusiness$$EnhancerByCGLIB$$ceaad113.CGLIB$validar$0(<generated>)
    at br.gov.sp.fazenda.dsen.model.business.NotaFiscalBusiness$$EnhancerByCGLIB$$ceaad113$$FastClassByCGLIB$$22d49c5c.invoke(<generated>)
    at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:167)
    at br.gov.sp.fazenda.dsge.model.dao.util.DSGEDAOInterceptorHelper.intercept(DSGEDAOInterceptorHelper.java:66)
    at br.gov.sp.fazenda.dsen.model.business.NotaFiscalBusiness$$EnhancerByCGLIB$$ceaad113.validar(<generated>)
    at br.gov.sp.fazenda.dsen.model.facade.NotaFiscalFacade.validarNotaFiscal(NotaFiscalFacade.java:240)
    at br.gov.sp.fazenda.dsen.controller.PesquisarNotaFiscalController.a(PesquisarNotaFiscalController.java:561)
    at br.gov.sp.fazenda.dsen.controller.PesquisarNotaFiscalController.actionPerformed(PesquisarNotaFiscalController.java:860)
    at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
    at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
    at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
    at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
    at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
    at java.awt.Component.processMouseEvent(Unknown Source)
    at javax.swing.JComponent.processMouseEvent(Unknown Source)
    at java.awt.Component.processEvent(Unknown Source)
    at java.awt.Container.processEvent(Unknown Source)
    at java.awt.Component.dispatchEventImpl(Unknown Source)
    at java.awt.Container.dispatchEventImpl(Unknown Source)
    at java.awt.Component.dispatchEvent(Unknown Source)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
    at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
    at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
    at java.awt.Container.dispatchEventImpl(Unknown Source)
    at java.awt.Window.dispatchEventImpl(Unknown Source)
    at java.awt.Component.dispatchEvent(Unknown Source)
    at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    at java.awt.EventQueue.access$500(Unknown Source)
    at java.awt.EventQueue$3.run(Unknown Source)
    at java.awt.EventQueue$3.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue$4.run(Unknown Source)
    at java.awt.EventQueue$4.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.run(Unknown Source)

Sugiro instalar a versão mais autalizada do JAVA pois estas mensagens esta realcionado ao JAVA, se o erro persistir tente reinstalar o programa da nota fiscal gratuito.

Espero ter ajudado.

Olá Andreia
Resolvi da seguinte forma:
Na aba - INFORMAÇÕES DE PAGAMENTO, preencha também o campo - DESCRIÇÃO DA FORMA DE PAGAMENTO - (mesmo não sendo obrigatório) ex. BOLETO. Deu certo. Espero ter ajudado.