Error in request data action. Unauthorized attempt to update collect data task by. The response has not been recorded.

Maybe this can help: Error "Unauthorized attempt to update approval task by DOMAINUsername" in LazyApproval Email | Community (nintex.com)

@bamaeric We are not using Lazy Approval, so those services are not needed.

This is the ULS log

 (https://ext………./_layouts/15/NintexWorkflow/preview.aspx?ListId=cf90d929-3315-466e-96cd-f0c376968179&ItemId=9696&InstanceId=a3faf11b-02e0-469e-9999-67ecb1191f68): Nintex.Workflow.NWActionExecutionException: Error in request data action. ---> Nintex.Workflow.NWHumanApprovalException: Unauthorized attempt to update collect data task by i:0#.w|xyz\yz.xyza,xyz.zyza@xyz.co.uk. The response has not been recorded.    
 at Nintex.Workflow.HumanApproval.CollectDataFromUserTask.ProcessResponse(User user, String comment, Outcome outcome, Int32 taskListItemId, Boolean forEscalation)    
 at Nintex.Workflow.Activities.CollectDataTaskAndEscalation.AfterOnTaskChanged(Object sender, ExternalDataEventArgs e)    
 at System.Workflow.ComponentModel.Activity.RaiseGenericEvent[T](DependencyProperty dependencyEvent, Object sender, T e)    
 at System.Workflow.Activities.HandleExternalEventActivity.RaiseEvent(Object[] args)    
 at System.Workflow.Activities.HandleExternalEventActivity.System.Workflow.ComponentModel.IActivityEventListener<System.Workflow.ComponentModel.QueueEventArgs>.OnEvent(Object sender, QueueEventArgs e)    
 at System.Workflow.ComponentModel.ActivityExecutorDelegateInfo`1.ActivityExecutorDelegateOperation.Run(IWorkflowCoreRuntime workflowCoreRuntime)    
 at System.Workflow.Runtime.Scheduler.Run()     -
 -- End of inner exception stack trace --- (Build:3130)