My mac disk crashed so I did a rebuild from the Time Machine backup. I probably did not take the best approach, as I reinstalled the operating system then used the Migration Assistant utility to restore my files from the backup.
Everything appears to work apart from Plex Media Server. When I double click on the application, the PMS icon appears briefly in the bar at the top of the screen, but soon disappears. I tried to download a new version of PMS and install it, this has not solved the problem. I have also checked the files in ~/Library/Application Support/Plex Media Server/, they have been copied across. Please help!