Update installed on NAS today -- Plex won't start

just tried updating plex to PlexMediaServer-1.18.0.1892-6887070bc-x86_64 on my Synology DS1019+ and here’s the error … won’t start anymore.

sh-4.3# ./start-stop-status start Starting Plex … ln: failed to create symbolic link ‘/usr/syno/synoman/webman/3rdparty/plex’: File exists