Since this week we cannot change a meeting after its meeting id has been generated. This Problem only exists within the gotomeeting outlook plugin. After further inspection of the network acticity, we found an URL which seems not to respond anymore:
http://ec2-54-203-140-253.us-west-2.compute.amazonaws.com
IP: 54.203.140.253
Inside the Application- Window there is only this Error- Message:

G2MOutlookPlugin.log:
"2022-11-29 13:02:52,448 [26] INFO - Get user settings
2022-11-29 13:02:52,448 [27] INFO - GetMeeting
2022-11-29 13:02:53,374 [27] INFO - Got meeting 09813
2022-11-29 13:02:53,400 [27] ERROR - Error during meeting editor initialiazation
System.ArgumentNullException: Der Wert darf nicht NULL sein.
Parametername: source
bei System.Linq.Enumerable.Select[TSource,TResult](IEnumerable`1 source, Func`2 selector)
bei LogMeIn.G2M.OP.MeetingEditor.MeetingEditorBuilder.CreateCountryVierwModel(List`1 allowedCountries, List`1 defaultCountries, List`1 meetingCountries, MeetingEditorView viewType)
bei LogMeIn.G2M.OP.MeetingEditor.MeetingEditorBuilder.InitTollFreeCountryView(List`1 meetingCountryCodes, OSDUserSettings settings)
bei LogMeIn.G2M.OP.MeetingEditor.MeetingEditorBuilder.InitMainView(MeetingEditorViewModel viewModel, OSDUserSettings settings, OSDMeeting meeting, List`1 tollNumbers, List`1 tollFreeNumbers)
bei LogMeIn.G2M.OP.MeetingEditor.MeetingEditorBuilder.<Initialize>d__f.MoveNext()
--- Ende der Stapelüberwachung vom vorhergehenden Ort, an dem die Ausnahme ausgelöst wurde ---
bei System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
bei System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
bei LogMeIn.G2M.OP.MeetingEditor.MeetingEditorBuilder.<InitializeEditor>d__1.MoveNext()
"
Do you have some idea, what could be wrong here?