Why do I get this stacktrace

1
I've created a datagrid with the object "System$FileDocument" in it. I'm showing the columns "CreatedDate", "Name" and "Owner". I get to following stacktrace when I navigate to the datagrid with the filedocuments. I don't understand why I get this stacktrace. ab: java.util.concurrent.ExecutionException: com.mendix.core.CoreRuntimeException: 'Reporting.IntercompanyConfirmationDocument' is not a valid entity at gh.a(SourceFile:349) Caused by: java.util.concurrent.ExecutionException: com.mendix.core.CoreRuntimeException: 'Reporting.IntercompanyConfirmationDocument' is not a valid entity at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222) at java.util.concurrent.FutureTask.get(FutureTask.java:83) at gh.a(SourceFile:346) at gh.a(SourceFile:297) at gh.a(SourceFile:188) at gh.a(SourceFile:139) at gh.a(SourceFile:87) at lv.a(SourceFile:69) at jA.a(SourceFile:47) at jj.a(SourceFile:222) at eF.a(SourceFile:101) at eF.a(SourceFile:74) at eF.executeAction(SourceFile:24) at com.mendix.systemwideinterfaces.core.UserAction.execute(SourceFile:49) at gk.execute(SourceFile:289) at jr.a(SourceFile:297) at jr.a(SourceFile:229) at jr.processRequest(SourceFile:173) at fz.a(SourceFile:71) at com.mendix.core.MxRuntime.processRequest(SourceFile:913) 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$2.run(QueuedThreadPool.java:436) at java.lang.Thread.run(Thread.java:662) Caused by: com.mendix.core.CoreRuntimeException: 'Reporting.IntercompanyConfirmationDocument' is not a valid entity at cB.d(SourceFile:1578) at com.mendix.core.Core.getMetaObject(SourceFile:1530) at du.a(SourceFile:51) at lc.a(SourceFile:50) at gh.a(SourceFile:423) at bS.a(SourceFile:41) at bS.call(SourceFile:14) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662)
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1 answers
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I think I got the answer:

The object Reporting.IntercompanyConfirmationDocument doesn't exist anymore in my domainmodel. This object inherited of System.FileDocument. Apparently there are still filedocuments in the database for the object Reporting.IntercompanyConfirmationDocument.

Is this normal giving a stacktrace like this and not filling my datagrid?

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