Reply To: Unable to submit message on latest version – showing Refresh this page and try again. Home › Forums › Front End PM PRO › Unable to submit message on latest version – showing Refresh this page and try again. › Reply To: Unable to submit message on latest version – showing Refresh this page and try again. June 21, 2019 at 3:19 pm #26055 DavidParticipant This option is enabled in Wordfence: Prevent discovery of usernames through ‘/?author=N’ scans, the oEmbed API, and the WordPress REST API