Reply To: Site getting a 504 Gateway Time-out error after submitting message Home › Forums › Front End PM PRO › Site getting a 504 Gateway Time-out error after submitting message › Reply To: Site getting a 504 Gateway Time-out error after submitting message June 20, 2018 at 8:22 pm #15136 Shamim HasanKeymaster Please enable debug (add define( 'WP_DEBUG', true ); in your wp-config.php) then send a message to group. Let me know if any error shows. Also check your server log to see what errors are there. Let me know.