[SmalllWiki] [Problems] I can't edit some pages!

Hi Lukas and all SmallWiki users, Have anyone else experinced that you sometimes can't edit some of the pages in the wiki? From time to time I got an error while editing pages in the wiki. Sometimes it is a page sometimes it is a folder. The last time it was a folder and I got the following error in the Web browser: Message not understood: #children UndefinedObject(Object)>>doesNotUnderstand: self nil aMessage an ArgumentVariable excpt a TemporaryVariable resumeValue a TemporaryVariable SmallWiki.FolderEdit>>renderChildrenPosition: self a SmallWiki.FolderEdit t1 an ArgumentVariable optimized [] in [] in [] in [] in SmallWiki.FolderEdit>>renderChildren: self BlockClosure [] in [] in [] in [] in SmallWiki.FolderEdit>>renderChildren: self a LocalVariable t2 a LocalVariable SmallWiki.HtmlWriteStream>>tag:do: self a SmallWiki.HtmlWriteStream t1 an ArgumentVariable t2 an ArgumentVariable SmallWiki.HtmlWriteStream>>tableCell: self a SmallWiki.HtmlWriteStream t1 an ArgumentVariable optimized [] in [] in [] in SmallWiki.FolderEdit>>renderChildren: self BlockClosure [] in [] in [] in SmallWiki.FolderEdit>>renderChildren: self a LocalVariable t2 a LocalVariable SmallWiki.HtmlWriteStream>>tag:do: self a SmallWiki.HtmlWriteStream t1 an ArgumentVariable t2 an ArgumentVariable SmallWiki.HtmlWriteStream>>tableRow: self a SmallWiki.HtmlWriteStream t1 an ArgumentVariable optimized [] in [] in SmallWiki.FolderEdit>>renderChildren: self BlockClosure [] in [] in SmallWiki.FolderEdit>>renderChildren: t2 an ArgumentVariable self a LocalVariable OrderedCollection>>do: self OrderedCollection (a SmallWiki.Glossary title: 'Glossary Test' a SmallWiki.Resource title: 'Ace' a SmallWiki.Page title: 'Test Page Preformatted' a SmallWiki.Page title: 'Test Page Med Bilder' a SmallWiki.Page title: 'Crasch boom crasch (saved)' a SmallWiki.Page title: 'Crasch boom crasch (not saved)') aBlock an ArgumentVariable index an ArgumentVariable .t0i5 an ArgumentVariable optimized [] in SmallWiki.FolderEdit>>renderChildren: self BlockClosure [] in SmallWiki.FolderEdit>>renderChildren: self a LocalVariable t1 a LocalVariable SmallWiki.HtmlWriteStream>>tag:do: self a SmallWiki.HtmlWriteStream t1 an ArgumentVariable t2 an ArgumentVariable SmallWiki.HtmlWriteStream>>table: self a SmallWiki.HtmlWriteStream t1 an ArgumentVariable SmallWiki.FolderEdit>>renderChildren: self a SmallWiki.FolderEdit t1 an ArgumentVariable SmallWiki.FolderEdit>>renderContent self a SmallWiki.FolderEdit t1 a TemporaryVariable t2 a TemporaryVariable SmallWiki.FolderEdit(SmallWiki.Action)>>renderContent: self a SmallWiki.FolderEdit t1 an ArgumentVariable SmallWiki.VisitorRendererHtmlLight(SmallWiki.VisitorRendererHtml)>>acceptTemplateStringContent: self a SmallWiki.VisitorRendererHtmlLight t1 an ArgumentVariable SmallWiki.TemplateStringContent>>accept: self a SmallWiki.TemplateStringContent t1 an ArgumentVariable optimized [] in SmallWiki.Visitor>>visitCollection: self BlockClosure [] in SmallWiki.Visitor>>visitCollection: t2 an ArgumentVariable self a LocalVariable OrderedCollection>>do: self OrderedCollection (a SmallWiki.TemplateStringTitleAction a SmallWiki.TemplateStringContent) aBlock an ArgumentVariable index an ArgumentVariable .t0i5 an ArgumentVariable SmallWiki.VisitorRendererHtmlLight(SmallWiki.Visitor)>>visitCollection: self a SmallWiki.VisitorRendererHtmlLight t1 an ArgumentVariable SmallWiki.VisitorRendererHtmlLight(SmallWiki.Visitor)>>acceptTemplateContainer: self a SmallWiki.VisitorRendererHtmlLight t1 an ArgumentVariable SmallWiki.VisitorRendererHtmlLight(SmallWiki.Visitor)>>acceptTemplateContainerRows: self a SmallWiki.VisitorRendererHtmlLight t1 an ArgumentVariable SmallWiki.TemplateContainerRows>>accept: self a SmallWiki.TemplateContainerRows t1 an ArgumentVariable SmallWiki.VisitorRendererHtmlLight(SmallWiki.Visitor)>>visit: self a SmallWiki.VisitorRendererHtmlLight t1 an ArgumentVariable optimized [] in [] in [] in [] in SmallWiki.VisitorRendererHtmlLight>>acceptTemplateContainerColumns: self BlockClosure [] in [] in [] in [] in SmallWiki.VisitorRendererHtmlLight>>acceptTemplateContainerColumns: self a LocalVariable t2 a LocalVariable SmallWiki.HtmlWriteStream>>tag:do: self a SmallWiki.HtmlWriteStream t1 an ArgumentVariable t2 an ArgumentVariable SmallWiki.HtmlWriteStream>>tableCell: self a SmallWiki.HtmlWriteStream t1 an ArgumentVariable optimized [] in [] in [] in SmallWiki.VisitorRendererHtmlLight>>acceptTemplateContainerColumns: self BlockClosure [] in [] in [] in SmallWiki.VisitorRendererHtmlLight>>acceptTemplateContainerColumns: t2 an ArgumentVariable self a LocalVariable OrderedCollection(SequenceableCollection)>>do:separatedBy: self OrderedCollection (a SmallWiki.TemplateContainerRows a SmallWiki.TemplateContainerRows) elementBlock an ArgumentVariable separatorBlock an ArgumentVariable i an ArgumentVariable .t0i6 an ArgumentVariable optimized [] in [] in SmallWiki.VisitorRendererHtmlLight>>acceptTemplateContainerColumns: self BlockClosure [] in [] in SmallWiki.VisitorRendererHtmlLight>>acceptTemplateContainerColumns: self a LocalVariable t1 a LocalVariable SmallWiki.HtmlWriteStream>>tag:do: self a SmallWiki.HtmlWriteStream t1 an ArgumentVariable t2 an ArgumentVariable SmallWiki.HtmlWriteStream>>tableRow: self a SmallWiki.HtmlWriteStream t1 an ArgumentVariable optimized [] in SmallWiki.VisitorRendererHtmlLight>>acceptTemplateContainerColumns: self BlockClosure [] in SmallWiki.VisitorRendererHtmlLight>>acceptTemplateContainerColumns: self a LocalVariable t1 a LocalVariable SmallWiki.HtmlWriteStream>>tag:do: self a SmallWiki.HtmlWriteStream t1 an ArgumentVariable t2 an ArgumentVariable SmallWiki.HtmlWriteStream>>table: self a SmallWiki.HtmlWriteStream t1 an ArgumentVariable SmallWiki.VisitorRendererHtmlLight>>acceptTemplateContainerColumns: self a SmallWiki.VisitorRendererHtmlLight t1 an ArgumentVariable SmallWiki.TemplateContainerColumns>>accept: self a SmallWiki.TemplateContainerColumns t1 an ArgumentVariable optimized [] in SmallWiki.Visitor>>visitCollection: self BlockClosure [] in SmallWiki.Visitor>>visitCollection: t2 an ArgumentVariable self a LocalVariable OrderedCollection>>do: self OrderedCollection (a SmallWiki.TemplateStringTitleWiki a SmallWiki.TemplateStructuresPath a SmallWiki.TemplateContainerColumns a SmallWiki.TemplateStringAbout) aBlock an ArgumentVariable index an ArgumentVariable .t0i5 an ArgumentVariable SmallWiki.VisitorRendererHtmlLight(SmallWiki.Visitor)>>visitCollection: self a SmallWiki.VisitorRendererHtmlLight t1 an ArgumentVariable SmallWiki.VisitorRendererHtmlLight(SmallWiki.Visitor)>>acceptTemplateContainer: self a SmallWiki.VisitorRendererHtmlLight t1 an ArgumentVariable SmallWiki.VisitorRendererHtmlLight(SmallWiki.Visitor)>>acceptTemplateContainerRows: self a SmallWiki.VisitorRendererHtmlLight t1 an ArgumentVariable SmallWiki.TemplateContainerRows>>accept: self a SmallWiki.TemplateContainerRows t1 an ArgumentVariable SmallWiki.VisitorRendererHtmlLight(SmallWiki.Visitor)>>visit: self a SmallWiki.VisitorRendererHtmlLight t1 an ArgumentVariable SmallWiki.VisitorRendererHtmlLight(SmallWiki.VisitorRendererHtml)>>acceptTemplateRootBody: self a SmallWiki.VisitorRendererHtmlLight t1 an ArgumentVariable optimized [] in [] in SmallWiki.VisitorRendererHtml>>acceptTemplateRoot: self BlockClosure [] in [] in SmallWiki.VisitorRendererHtml>>acceptTemplateRoot: self a LocalVariable t1 a LocalVariable SmallWiki.HtmlWriteStream>>tag:do: self a SmallWiki.HtmlWriteStream t1 an ArgumentVariable t2 an ArgumentVariable SmallWiki.HtmlWriteStream>>body: self a SmallWiki.HtmlWriteStream t1 an ArgumentVariable optimized [] in SmallWiki.VisitorRendererHtml>>acceptTemplateRoot: self BlockClosure [] in SmallWiki.VisitorRendererHtml>>acceptTemplateRoot: self a LocalVariable t1 a LocalVariable SmallWiki.HtmlWriteStream>>tag:do: self a SmallWiki.HtmlWriteStream t1 an ArgumentVariable t2 an ArgumentVariable SmallWiki.HtmlWriteStream>>html: self a SmallWiki.HtmlWriteStream t1 an ArgumentVariable SmallWiki.VisitorRendererHtmlLight(SmallWiki.VisitorRendererHtml)>>acceptTemplateRoot: self a SmallWiki.VisitorRendererHtmlLight t1 an ArgumentVariable SmallWiki.TemplateRoot>>accept: self a SmallWiki.TemplateRoot t1 an ArgumentVariable SmallWiki.VisitorRendererHtmlLight(SmallWiki.Visitor)>>visit: self a SmallWiki.VisitorRendererHtmlLight t1 an ArgumentVariable SmallWiki.VisitorRendererHtmlLight class(SmallWiki.VisitorRendererHtml class)>>renderAction:on: self SmallWiki.VisitorRendererHtmlLight t1 an ArgumentVariable t2 an ArgumentVariable SmallWiki.FolderEdit(SmallWiki.Action)>>render self a SmallWiki.FolderEdit SmallWiki.FolderEdit(SmallWiki.Action)>>executeRenderer self a SmallWiki.FolderEdit SmallWiki.FolderEdit(SmallWiki.Action)>>execute self a SmallWiki.FolderEdit SmallWiki.FolderEdit(SmallWiki.EditAction)>>execute self a SmallWiki.FolderEdit optimized [] in SmallWiki.Structure>>processAction: self BlockClosure [] in SmallWiki.Structure>>processAction: t1 a LocalVariable BlockClosure>>on:do: self BlockClosure [] in SmallWiki.Structure>>processAction: anExceptionSelector an ArgumentVariable handlerBlock an ArgumentVariable SmallWiki.Folder(SmallWiki.Structure)>>processAction: self a SmallWiki.Folder title: 'Test Folder' t1 an ArgumentVariable SmallWiki.Folder(SmallWiki.Structure)>>processSelf: self a SmallWiki.Folder title: 'Test Folder' t1 an ArgumentVariable t2 a TemporaryVariable t3 a TemporaryVariable SmallWiki.Folder(SmallWiki.Structure)>>process: self a SmallWiki.Folder title: 'Test Folder' t1 an ArgumentVariable SmallWiki.Folder>>processChild: self a SmallWiki.Folder title: 'User Award, Test of Wiki' t1 an ArgumentVariable t2 a TemporaryVariable SmallWiki.Folder(SmallWiki.Structure)>>process: self a SmallWiki.Folder title: 'User Award, Test of Wiki' t1 an ArgumentVariable optimized [] in SmallWiki.Server>>process: self BlockClosure [] in SmallWiki.Server>>process: self a LocalVariable t1 a LocalVariable BlockClosure>>on:do: self BlockClosure [] in SmallWiki.Server>>process: anExceptionSelector an ArgumentVariable handlerBlock an ArgumentVariable SmallWiki.SwazooServer(SmallWiki.Server)>>process: self a SmallWiki.SwazooServer t1 an ArgumentVariable SmallWiki.SwazooSite>>helpResolve: self a SmallWiki.SwazooSite t1 an ArgumentVariable t2 a TemporaryVariable Swazoo.URIResolution>>visitResource: self a Swazoo.URIResolution t1 an ArgumentVariable [] in Swazoo.URIResolution>>visitChildrenOf:advancing: self BlockClosure [] in Swazoo.URIResolution>>visitChildrenOf:advancing: t4 an ArgumentVariable self a LocalVariable ..shared a LocalVariable t3 a DynamicTemporaryVariable OrderedCollection>>do: self OrderedCollection (a SmallWiki.SwazooSite) aBlock an ArgumentVariable index an ArgumentVariable .t0i5 an ArgumentVariable Swazoo.URIResolution>>visitChildrenOf:advancing: self a Swazoo.URIResolution t1 an ArgumentVariable t2 an ArgumentVariable ..shared a GroupVariable t3 a DynamicTemporaryVariable Swazoo.URIResolution>>resolveTransparentComposite: self a Swazoo.URIResolution t1 an ArgumentVariable Swazoo.URIResolution>>resolveServerRoot: self a Swazoo.URIResolution t1 an ArgumentVariable Swazoo.ServerRootComposite>>helpResolve: self a Swazoo.ServerRootComposite t1 an ArgumentVariable Swazoo.URIResolution>>visitResource: self a Swazoo.URIResolution t1 an ArgumentVariable Swazoo.URIResolution class>>resolveRequest:startingAt: self Swazoo.URIResolution t1 an ArgumentVariable t2 an ArgumentVariable Swazoo.HTTPServer>>answerTo: self a Swazoo.HTTPServer t1 an ArgumentVariable t2 a TemporaryVariable optimized [] in Swazoo.HTTPConnection>>getAndDispatchMessages self BlockClosure [] in Swazoo.HTTPConnection>>getAndDispatchMessages self a LocalVariable t1 a LocalVariable BlockClosure>>on:do: self BlockClosure [] in Swazoo.HTTPConnection>>getAndDispatchMessages anExceptionSelector an ArgumentVariable handlerBlock an ArgumentVariable Swazoo.HTTPConnection>>getAndDispatchMessages self a Swazoo.HTTPConnection t1 a TemporaryVariable t2 a TemporaryVariable optimized [] in [] in Swazoo.HTTPConnection>>interact self BlockClosure [] in [] in Swazoo.HTTPConnection>>interact self a LocalVariable BlockClosure>>on:do: self BlockClosure [] in [] in Swazoo.HTTPConnection>>interact anExceptionSelector an ArgumentVariable handlerBlock an ArgumentVariable optimized [] in Swazoo.HTTPConnection>>interact self BlockClosure [] in Swazoo.HTTPConnection>>interact self a LocalVariable BlockClosure>>on:do: self BlockClosure [] in Swazoo.HTTPConnection>>interact anExceptionSelector an ArgumentVariable handlerBlock an ArgumentVariable optimized [] in Process class>>forBlock:priority: self BlockClosure [] in Process class>>forBlock:priority: aBlock a LocalVariable I am running SmallWiki psql_public_cst(0.9.5,lukas)= Any ideas? Cheers, Björn