Good day,

Upon upgrading some Windows Clients to Version 10.2, certain users have been receiving an "Unknown Error" when opening Office documents.

The operating systems are 64bit and they are running either Office 32bit or 64bit. 

In the error logs, I receive the following information:

2/06/2017 16:29:45 8412 [1] INFO  LFOP - Laserfiche.Office.Plugin(10.2.0.839)-EXCEL(14.0.4756.1000)-2017-02-06_16-29-45-8282.log
2/06/2017 16:29:45 8502 [1] INFO  LFOP - Start to load Laserfiche Office Integration for 'Excel 2010'.
2/06/2017 16:29:45 8803 [1] INFO  LFOP - Laserfiche Office Integration for 'Excel 2010' is loaded.
2/06/2017 16:29:46 3957 [1] INFO  LFOP - open office doc: DocIdentity:DocumentUnsaved=False;ID=df3290d2-3ed7-4017-9f6c-ecd564d24c69;, C:\Users\michellef\AppData\Local\Temp\Cricket schedule_227578\Cricket schedule.xls, False
2/06/2017 16:29:46 5008 [1] DEBUG LFOP - Execute GetEntry(\003_Human Resources\Cricket schedule)
2/06/2017 16:29:46 5578 [1] ERROR LFOP - Unknown error.
System.Runtime.InteropServices.COMException (0x80040300): Unknown error.
   at LFSO102Lib.ILFServer.get_Version()
   at Laserfiche.OfficePlugin.Connector.App.CheckServerVersion(LFServer lfServer)
   at Laserfiche.OfficePlugin.Connector.App.CheckServerVersion(String server, Int32 port, Boolean ssl)
   at Laserfiche.OfficePlugin.Connector.App.CheckServerVersion(RepositoryAdapter connector)
   at Laserfiche.OfficePlugin.UI.LogInDialog.BeforeLogin()
   at Laserfiche.OfficePlugin.UI.ConnectorProxy.LogInDelegate(IOPConnector connector)
   at Laserfiche.OfficePlugin.UI.ConnectorProxy.ExecuteOperation(String rawMethod, Object[] args, Boolean& autoReconnect, Boolean logArgs)
   at Laserfiche.OfficePlugin.UI.ConnectorProxy.GetEntry(String path)
   at Laserfiche.OfficePlugin.Common.DocModel.OPArtifact.Create(SharingInformation sharingInfo)
   at Laserfiche.OfficePlugin.Common.DocModel.OPArtifactFactory.FromLocalDoc(String path, Boolean readOnly)
2/06/2017 16:29:51 2418 [1] INFO  LFOP - close office doc: DocIdentity:DocumentUnsaved=False;ID=d5b6adeb-c35c-4a11-8070-68a59d07f228;, C:\Users\USERNAME\AppData\Local\Temp\Cricket schedule_227578\Cricket schedule.xls, False
2/06/2017 16:29:51 2548 [1] INFO  LFOP - Start to unload Laserfiche Office Integration for 'Excel 2010'.
2/06/2017 16:29:52 3177 [1] INFO  LFOP - Laserfiche Office Integration for 'Excel 2010' is unloaded.