after upgrading CRM 2016 to version 8.2.3 getting SharePoint dll issue for custom plugin

Hi,

we have integration between sharepoint 2013 and CRM 2016,recently after we ugraded CRM to version 8.2.3 as recommended by MS,getting sharepoint dll issue for custom plugin

Error log:

Could not load file or assembly 'Microsoft.SharePoint.Client, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71b9bce111d1119d' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

Plugin Trace:

[Orga.SharePoint: Orga.SharePoint.WorkflowActivities.CreateSharePointFolderActivity]
[Orga.SharePoint (1.0.0.0): Orga.SharePoint.WorkflowActivities.CreateSharePointFolderActivity]
Organization Unit
Create Folder For Profile - Start

Error Message:

Unhandled Exception: System.IO.FileLoadException: Could not load file or assembly 'Microsoft.SharePoint.Client, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71b9bce111d1119d' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
   at Orga.SharePoint.Repositories.SharePointRepository..ctor(String serverUrl, NetworkCredential credentials)
   at Orga.SharePoint.Services.SharePointService.CreateFolderForProfile(Guid entityId, ITracingService tracingService)
   at Orga.SharePoint.WorkflowActivities.CreateSharePointFolderActivity.Execute(CodeActivityContext executionContext)
   at System.Activities.CodeActivity.InternalExecute(ActivityInstance instance, ActivityExecutor executor, BookmarkManager bookmarkManager)
   at System.Activities.Runtime.ActivityExecutor.ExecuteActivityWorkItem.ExecuteBody(ActivityExecutor executor, BookmarkManager bookmarkManager, Location resultLocation)