Method 'Log' in type 'LoggerInterceptor' does not have an implementation

Method 'Log' in type 'LoggerInterceptor' does not have an implementation

  
We got this error and it is the first time I encountered it. I am still checking on it but I posted this already so in case someone got something about it.

Method 'Log' in type 'LoggerInterceptor' from assembly 'OutSystems.NssEventSystem, Version=9.0.1.9, Culture=neutral, PublicKeyToken=null' does not have an implementation.
   at OutSystems.NssEventSystem.Events.SideEffectsInterceptor.LeaveEvent()
   at OutSystems.NssEventSystem.Events.Event.<Send>b__0(Control w)
   at OutSystems.NssEventSystem.Utils.FindVisitor.Find(Control root, String clientId, Action`1 onFind)
   at OutSystems.NssEventSystem.Events.Event.Send(String widgetId)
   at OutSystems.NssEventSystem.CssEventSystem.MssTriggerNotifyWidget(String ssWebBlockRuntimeWidgetId, String ssMessage)
   at ssevents.RssExtensionEventSystem.MssTriggerNotifyWidgetInternal(HeContext heContext, String inParamWebBlockRuntimeWidgetId, String inParamMessage)

Platform: Bali 9.1

Thanks,
JC