If you're using ActionErrors, then its bad. why ? this is what Struts 1.x JavaDocs says about ActionErrors class.
A class that encapsulates the error messages being reported by the validate() method of an ActionForm. Validation errors are either global to the entire ActionForm bean they are associated with, or they are specific to a particular bean property (and, therefore, a particular input field on the corresponding form).
ActionErrors are associated with the ActionForm, if you really want to return error message, consider using ActionMessages.
Also, the input page to which your returning(redirecting ??) is normally the page from which action gets called, like a html submit form page.