[Resolved] Old osticket HTTP error 500 To Parent Forum March 17, 2022 at 8:38 am #9720 N nandorParticipant Hi, I can not open the old osTicket. Browser say: HTTP error 500 March 22, 2022 at 8:31 am #9745 N nandorParticipant The problem was solved. I deteled the osticket backup lite plugin and now, it is works. You must be logged in to reply to this topic. Topic Tagsold osticket http error 500