Syncing issue just started today

I have a syncing issue - here is the log file entries:
2:32:06 PM MailExceptions.OperationException: Synchronizing folder list failed with an error: Subscriptions not enabled for this client —> The request ‘Google.Apis.Requests.Request(list @ https://www.googleapis.com/calendar/v…)’ has failed. The service calendar has thrown an exception: Google.GoogleApiRequestException: Google.Apis.Requests.RequestError
2:32:06 PM Subscriptions not enabled for this client [400]
2:32:06 PM Errors [
2:32:06 PM Message[Subscriptions not enabled for this client] Location[-] Reason[subscriptionNotEnabled] Domain[push]
2:32:06 PM ]
2:32:06 PM —> System.Net.WebException: The remote server returned an error: (400) Bad Request.
2:32:06 PM at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
2:32:06 PM at Google.Apis.Requests.Request.InternalEndExecuteRequest(IAsyncResult asyncResult)
2:32:06 PM — End of inner exception stack trace —
2:32:06 PM at Google.Apis.Requests.ServiceRequest1.EndFetchInternal(IAsyncResult asyncResult) 2:32:06 PM at Google.Apis.Requests.ServiceRequest1.EndFetch(IAsyncResult asyncResult)
2:32:06 PM at MailClient.Protocols.Gdata.FetchHelper.FetchWithCancellation[T](ServiceRequest`1 request, CancellationToken cancellationToken)
2:32:06 PM at MailClient.Protocols.Gdata.CalendarFolderSynchronizer.GetFolderList(CancellationToken cancellationToken)
2:32:06 PM at MailClient.Protocols.Common.FolderSynchronizer.<>c__DisplayClass5.b__0(WorkerStatus status, CancellationToken cancellationToken)
2:32:06 PM at MailClient.Protocols.Gdata.GenericGapiCommand.Execute(WorkerStatus status)
2:32:06 PM — End of inner exception stack trace —
2:32:06 PM at MailClient.Protocols.Gdata.GenericGapiCommand.Execute(WorkerStatus status)
2:32:06 PM at MailClient.Commands.Command.Process(WorkerStatus status)

I am having this issue today as well. Please advise WHY and how to remedy.

Hi, does the problem persist? It was a temporary issue on Google’s side but it should be already fixed.