Reply To: error key licence – error 500 Home › Forums › Front End PM PRO › error key licence – error 500 › Reply To: error key licence – error 500 March 16, 2018 at 9:36 pm #12291 Nicolas PerezParticipant I’m afraid the probles was after update or, may be, if there is any automatic update (when license is setted). Becaus at the beginning, version 7.4 works fine. After 3 hours, stop. thanks Nicolas