im new with graylog and ive just install the server
its up and get logs from several inputs (syslog, snmp traps)
when trying to install Content packs im getting an error message.
as this content pack has no description given I assume that this is build for Graylog 2.x and not Graylog 3.x you might want to ask the creator over at github: https://github.com/bgconder/GraylogRuckus/issues