logstash启动报错

root@greatwall-os:/usr/local/elk/logstash/bin# ./logstash
Sending Logstash logs to /usr/local/elk/logstash/logs which is now configured via log4j2.properties
[2019-09-24T20:02:00,218][INFO ][logstash.setting.writabledirectory] Creating directory {:setting=>"path.queue", :path=>"/usr/local/elk/logstash/data/queue"}
[2019-09-24T20:02:00,273][INFO ][logstash.setting.writabledirectory] Creating directory {:setting=>"path.dead_letter_queue", :path=>"/usr/local/elk/logstash/data/dead_letter_queue"}
[2019-09-24T20:02:01,186][ERROR][org.logstash.Logstash ] java.lang.IllegalStateException: Logstash stopped processing because of an error: (LoadError) load error: ffi/ffi -- java.lang.NullPointerException: null