on a local action, a Table is loading based on a dropdown selection, with source a pagelist

After data loading, on selecting filters on the column getting below error

Please suggest what to check on for this error, Thank you.

Exception Trace      
com.pega.pegarules.pub.clipboard.WrongModeException: The property .pyFilterValue was of mode String while com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.addToList(boolean, int, Object, boolean) was expecting String List mode. Details: (none) 
 Java Stack Trace 
 at com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.addToList(ClipboardPropertyImpl.java:709) 
 at com.pega.pegarules.data.internal.clipboard.ClipboardPropertyBase.add(ClipboardPropertyBase.java:2656) 
 at com.pega.pegarules.data.internal.clipboard.ClipboardPropertyBase.add(ClipboardPropertyBase.java:2646) 
 at com.pega.pegarules.data.internal.clipboard.ClipboardPropertyBase.add(ClipboardPropertyBase.java:2642) 
 at com.pegarules.generated.activity.ra_action_pzgridsortpaginate_a6af6f907aa227dc1ee3ceb5c530d2fc.step1_circum0(ra_action_pzgridsortpaginate_a6af6f907aa227dc1ee3ceb5c530d2fc.java:264) 
 at com.pegarules.generated.activity.ra_action_pzgridsortpaginate_a6af6f907aa227dc1ee3ceb5c530d2fc.perform(ra_action_pzgridsortpaginate_a6af6f907aa227dc1ee3ceb5c530d2fc.java:76) 
 at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:2863) 
 at com.pegarules.generated.activity.ra_action_pzdogridaction_fbf05eadef803085bc25804d560375b6.step2_circum0(ra_action_pzdogridaction_fbf05eadef803085bc25804d560375b6.java:587) 
 at com.pegarules.generated.activity.ra_action_pzdogridaction_fbf05eadef803085bc25804d560375b6.perform(ra_action_pzdogridaction_fbf05eadef803085bc25804d560375b6.java:93) 
 at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:2863) 
 at com.pegarules.generated.activity.ra_action_reloadsection_7f53f19b731fce78e8e1eb73e3ab4889.step6_circum0(ra_action_reloadsection_7f53f19b731fce78e8e1eb73e3ab4889.java:1100) 
 at com.pegarules.generated.activity.ra_action_reloadsection_7f53f19b731fce78e8e1eb73e3ab4889.perform(ra_action_reloadsection_7f53f19b731fce78e8e1eb73e3ab4889.java:161) 
 at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:2863) 
 at com.pega.pegarules.session.internal.mgmt.base.ThreadRunner.runActivitiesAlt(ThreadRunner.java:653) 
 at com.pega.pegarules.session.internal.mgmt.PRThreadImpl.runActivitiesAlt(PRThreadImpl.java:521) 
 at com.pega.pegarules.session.internal.engineinterface.service.HttpAPI.runActivities(HttpAPI.java:4347) 
 at com.pega.pegarules.session.external.engineinterface.service.EngineAPI.processRequestInner(EngineAPI.java:456) 
 at sun.reflect.GeneratedMethodAccessor175.invoke(Unknown Source) 
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55) 
 at java.lang.reflect.Method.invoke(Method.java:508) 
 at com.pega.pegarules.session.internal.PRSessionProviderImpl.performTargetActionWithLock(PRSessionProviderImpl.java:1392) 
 at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:1124) 
 at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:978) 
 at com.pega.pegarules.session.external.engineinterface.service.EngineAPI.processRequest(EngineAPI.java:379) 
 at com.pega.pegarules.session.internal.engineinterface.service.HttpAPI.invoke(HttpAPI.java:934) 
 at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl._invokeEngine_privact(EngineImpl.java:338) 
 at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.invokeEngine(EngineImpl.java:282) 
 at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.invokeEngine(EngineImpl.java:259) 
 at com.pega.pegarules.priv.context.JNDIEnvironment.invokeEngineInner(JNDIEnvironment.java:281) 
 at com.pega.pegarules.priv.context.JNDIEnvironment.invokeEngine(JNDIEnvironment.java:226) 
 at com.pega.pegarules.web.impl.WebStandardImpl.invokeEngine(WebStandardImpl.java:853) 
 at com.pega.pegarules.web.impl.WebStandardImpl.makeEtierRequest(WebStandardImpl.java:813) 
 at com.pega.pegarules.web.impl.WebStandardImpl.doPostInner(WebStandardImpl.java:435) 
 at sun.reflect.GeneratedMethodAccessor173.invoke(Unknown Source) 
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55) 
 at java.lang.reflect.Method.invoke(Method.java:508) 
 at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethod(PRBootstrap.java:388) 
 at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethodPropagatingThrowable(PRBootstrap.java:430) 
 at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethodPropagatingThrowable(AppServerBridgeToPega.java:225) 
 at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethod(AppServerBridgeToPega.java:274) 
 at com.pega.pegarules.internal.web.servlet.WebStandardBoot.doPost(WebStandardBoot.java:164) 
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) 
 at com.pega.pegarules.internal.web.servlet.WebStandardBoot.service(WebStandardBoot.java:191) 
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) 
 at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1235) 
 at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:779) 
 at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478) 
 at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:179) 
 at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1134) 
 at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:4238) 
 at com.ibm.ws.webcontainer.webapp.WebAppImpl.handleRequest(WebAppImpl.java:2210) 
 at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304) 
 at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:1033) 
 at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1817) 
 at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:382) 
 at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:465) 
 at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:532) 
 at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:318) 
 at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:88) 
 at com.ibm.ws.ssl.channel.impl.SSLReadServiceContext$SSLReadCompletedCallback.complete(SSLReadServiceContext.java:1833) 
 at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175) 
 at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217) 
 at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161) 
 at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138) 
 at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204) 
 at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775) 
 at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905) 
 at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1909)