Hi, I'm trying to access a form locally which has a xpath in datagrid and not only I don't see anything for over 15 mins when I stop the service I can then see the form and the following exception in the console. It doesn't happen in production. I haven't changed anything locally, although I know that whenever I close the project and re-open it another day some changes from previous day have disappeared (showing errors), but app was fine the day before. Don't know if this could be causing the problem. No database changes or settings. Can see other forms and other complex xpath retrievals, but not this one which is showing perfectly well in production with the same xpath... ?! ###################### af: An exception has occurred for the following request(s): jE (depth = -1, amount = 20): //GroupsAndSchemes.Groups[Production.ApplicationGroups/Production.Application/ApplicationType='Group'] [(Production.ApplicationGroups/Production.Application/Production.ApplicationSchemeStatus/GroupsAndSchemes.SchemeStatus/StatusCode!='CANCELLED')] [Production.ApplicationGroups/Production.Application/Production.ApplicationSchemeStatus/GroupsAndSchemes.SchemeStatus/StatusCode!='EXPIRED'] ['[%CurrentDateTime%]' <= Production.ApplicationGroups/Production.Application/RenewalDate] [('[%CurrentDateTime%] + 7 * [%WeekLength%]' > Production.ApplicationGroups/Production.Application/RenewalDate and Production.ApplicationGroups/Production.Application/SixWeek='false') or ('[%CurrentDateTime%] + 2 * [%WeekLength%]' > Production.ApplicationGroups/Production.Application/RenewalDate and (Production.ApplicationGroups/Production.Application/SixWeek='true' and Production.Application_Groups/Production.Application/OneWeek='false'))] Caused by: af: Exception occurred while retrieving data. Caused by: java.lang.IllegalStateException: Pool not open at org.apache.commons.pool.BaseObjectPool.assertOpen(BaseObjectPool.java:137) at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:1065) at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:106) at ef.a(SourceFile:42) at aA.d(SourceFile:1461) at aA.t(SourceFile:1467) at aA.a(SourceFile:288) at aA.a(SourceFile:190) at aA.a(SourceFile:179) at iB.a(SourceFile:47) at go.a(SourceFile:182) at go.a(SourceFile:140) at go.a(SourceFile:88) at lw.a(SourceFile:69) at jC.a(SourceFile:47) at jm.a(SourceFile:222) at eJ.a(SourceFile:101) at eJ.a(SourceFile:74) at eJ.executeAction(SourceFile:24) at com.mendix.systemwideinterfaces.core.UserAction.execute(SourceFile:49) at gp.execute(SourceFile:289) at ju.a(SourceFile:299) at ju.a(SourceFile:230) at ju.processRequest(SourceFile:174) at fF.a(SourceFile:71) at com.mendix.core.MxRuntime.processRequest(SourceFile:938) at com.mendix.m2ee.server.handler.RuntimeHandler.handle(RuntimeHandler.java:42) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:113) at org.eclipse.jetty.server.Server.handle(Server.java:334) at org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:559) at org.eclipse.jetty.server.HttpConnection$RequestHandler.content(HttpConnection.java:1007) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:747) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:209) at org.eclipse.jetty.server.HttpConnection.handle(HttpConnection.java:406) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:462) at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:436) at java.lang.Thread.run(Thread.java:619)