Thanks for your quick reply.
That's right, I installed the Java Installer Package from the Community and it installed the version 13. Now FileBot does not display the error message anymore.

Thanks !!

Hi, I installed Java8 on my Synology NAS : David@David_Serveur:/usr/local/bin$ find / -name java 2>/dev/null /volume1/@appstore/Java8/j2sdk-image/jre/bin/java /volume1/@appstore/Java8/j2sdk-image/bin/java When I launch FileBot, it tells me : $ filebot -version /usr/local/bin/filebot: line 67: java: ...