Filter Export Issue

Dear Community,

I have been encountering a problem while exporting the filter from ARIS Architect. 

Any help on this will be much appreciated.

Following is the error log:

2015-11-13T09:33:21,706 com.idsscheer.aris.server.Exceptions - Exception in class com.aris.modeling.server.bl.logic.aml.writer.AXMLArisExportEngine
com.aris.modeling.server.bl.logic.aml.writer.AXMLArisExportEngine.startExport
java.lang.NullPointerException
	at com.aris.modeling.server.bl.logic.aml.writer.AExportScanner.scanModels(AExportScanner.java:141)
	at com.aris.modeling.server.bl.logic.aml.writer.AExportScanner.scan(AExportScanner.java:84)
	at com.aris.modeling.server.bl.logic.aml.writer.AExportAlgorithm.scanItems(AExportAlgorithm.java:32)
	at com.aris.modeling.server.bl.logic.aml.writer.AXMLArisExportEngine.startExport(AXMLArisExportEngine.java:292)
	at com.aris.modeling.server.bl.components.configservice.AConfigService.startXMLExport(AConfigService.java:777)
	at com.aris.modeling.server.bl.components.configservice.AConfigService.xmlExport(AConfigService.java:662)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at com.idsscheer.remoting.DispatcherServlet.handle(DispatcherServlet.java:133)
	at com.idsscheer.remoting.DispatcherServlet.doPost(DispatcherServlet.java:63)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at com.idsscheer.aris.umc.security.servlet.filter.AbstractLicenseFilter.doFilter(AbstractLicenseFilter.java:90)
	at com.idsscheer.aris.umc.security.servlet.filter.UmcLicenseTenantCheckFilter.doFilter(UmcLicenseTenantCheckFilter.java:46)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at com.softwareag.copernicus.web.servletFilter.GwtCacheControlFilter.doFilter(GwtCacheControlFilter.java:41)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at com.aris.zkc.servlet.AZkcPreferredRoutingFilter.doFilter(AZkcPreferredRoutingFilter.java:86)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at com.idsscheer.aris.umc.security.servlet.filter.AbstractAuthenticationFilter.doFilter(AbstractAuthenticationFilter.java:99)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at com.aris.monitoring.UseCaseFilter.doFilter(UseCaseFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at com.idsscheer.aris.umc.security.servlet.filter.AbstractAuthenticationFilter.doFilter(AbstractAuthenticationFilter.java:99)
	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:222)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
	at org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
	at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:680)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)

Following is the screenshot: