Error: Office 2019 scheme 6 is not implemented

Description

The log shows this error:

--- 2020-11-19 13:36:22,384 [OUTLOOK] ERROR [HASH: AF44EBFE7B54C13E035A3ABC80A7BD49] [EWAY: eWay-CRM Premium 6.0.1.83] [OL: 16.0.13426.20234] [WIN: Microsoft Windows NT 10.0.19041.0] ---
Error in OnConnection method
System.ArgumentException: Office 2019 scheme 6 is not implemented.
  at eWay.Core.GUI.Common.Office2019.GetOfficeSkinName(Office2016Schemes scheme)
  at eWay.Core.GUI.Common.Design.SetCurrentStyle(Boolean forceLightTheme)
  at eWay.Core.Helpers.ThreadSetupHelper.SetUp(Boolean setupStyle)
  at eWay.Core.Office.Addins.OutlookAddin.Connect.OnConnection(Object application, ext_ConnectMode connectMode, Object addInInst, Array& custom)
--- END TRACE --- 

Version

eWay-CRM 6.1.0 or older

Difficulty

Medium

Resolution

1. Click the File option in the Outlook ribbon and then Options.
2. In the General section, be sure that you are using one of the default themes, not the Use system setting.