Can-t-start-WL7-ScannerSettingsManager

Yesterday I downloaded the last version and today, after restarting the PC, the software does not start anymore. The following debug message appears.

I previously completely uninstalled and then reinstalled the program. Did not help.

System.Windows.Markup.XamlParseException: Durch den Aufruf des Konstruktors für Typ "WealthLab7.MainWindow", der den angegebenen Bindungseinschränkungen entspricht, wurde eine Ausnahme ausgelöst.
---> System.FormatException: Input string was not in a correct format.
at System.Number.ThrowOverflowOrFormatException(ParsingStatus status, TypeCode type)
at System.Number.ParseInt32(ReadOnlySpan`1 value, NumberStyles styles, NumberFormatInfo info)
at System.Int32.Parse(String s)
at FacadeConfiguration.InvokeQueue(String , FacadeConfiguration )
at WealthLab.Core.SettingsManager.Get(String key, Int32 defaultValue)
at †††
†††Œ‘.†††
†††Œ‡›(Object , String , Int32 , †††
†††Œ‘ )
at WealthLab.DataExtensions.ScannerSettingsManager.Initialize()
at WealthLab.DataExtensions.ScannerExtension.Initialize()
at WealthLab.WPF.ExtensionsFactory.Initialize(IWLClientHost host)
at CallbackSetter.PatchFilter(Object , IWLClientHost , CallbackSetter )
at WealthLab7.MainWindow..ctor()
--- End of inner exception stack trace ---
at System.Windows.Markup.XamlReader.RewrapException(Exception e, IXamlLineInfo lineInfo, Uri baseUri)
at System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri)
at System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri)
at System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream)
at System.Windows.Application.LoadBamlStreamWithSyncInfo(Stream stream, ParserContext pc)
at System.Windows.Application.LoadComponent(Uri resourceLocator, Boolean bSkipJournaledProperties)
at System.Windows.Application.DoStartup()
at System.Windows.Application.<.ctor>b__1_0(Object unused)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)