WordPress Plugin for Creatio

We are getting the following error message when trying to use the plugin: 

The server encountered an error processing the request. The exception message is 'Owner field must be filled in'. See server logs for more details. The exception stack trace is: 
      
   at Terrasoft.Configuration.FileImport.FileImporter.ValidateColumnsMapping(ImportParameters parameters)
   at Terrasoft.Configuration.FileImport.FileImporter.Import(ImportParameters parameters)
   at Terrasoft.Configuration.WebFormHandler.HandleForm(FormData formData)
   at Terrasoft.Configuration.GeneratedWebFormService.GeneratedObjectWebFormService.SaveWebFormObjectData(FormData formData)
   at SyncInvokeSaveWebFormObjectData(Object , Object[] , Object[] )
   at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
   at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)
    
  

                    [raw] => HTTP/1.1 400 Bad Request
Cache-Control: private
Content-Type: text/html
Server: Microsoft-IIS/8.5
Set-Cookie: BPMSESSIONID=mqd0tpbejjhecrk5m5pz4fwy; path=/0; secure; HttpOnly
Access-Control-Allow-Origin: *
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
X-Frame-Options: SAMEORIGIN
X-Content-Type-Options: nosniff
Date: Mon, 20 Apr 2020 19:31:38 GMT
Connection: close
Content-Length: 2724