Attempting to edit a Nintex form causes an Nintex error page to appear with the below error.

Error message:

#ERR
 

Navigate to List Settings in the list ribbon and edit and save the list lookup columns. The Nintex form has lost connection to a list lookup field and saving the field settings will restore the connection.

Front End: Application_Error => Microsoft.SharePoint.Client.ServerException: #ERR at Microsoft.SharePoint.Client.ClientRequest.ProcessResponseStream(Stream responseStream) at Microsoft.SharePoint.Client.ClientRequest.ProcessResponse() at Nintex.Forms.SharePoint.BatchedContext.ExecuteQuery() at Nintex.Forms.SharePoint.SharePointContexPage.InitializeCulture() at ASP.pages_formspart_aspx.FrameworkInitialize() at System.Web.UI.Page.d__10.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Web.UI.Page.d__2c.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification