eSpace Holidays Object reference not set to an instance of an object

Getting this error in event viewer

Error sending log: System.NullReferenceException: Object reference not set to an instance of an object.
   at OutSystems.HubEdition.RuntimePlatform.DBRuntimePlatform.CreateVisitLog(IDbConnection conn, CustomLog log)
   at OutSystems.HubEdition.RuntimePlatform.Log.LoggerSynchronous.Log(CustomLog log)
   at OutSystems.HubEdition.RuntimePlatform.Log.RuntimeLogger.LogVisit(DateTime instant, String visitorUID, String visitUID)
Message generated by eSpace Holidays.

Anyone can help me with this or point me in one direction?
Hi Marcelo,

Was able to replicate your problem in my machine and created an support issue about it.

To solve it in your side I recommend following this tutorial to get the asynchronous logging working, since your issue only happens with synchronous logging.

João Rosado