Logstash elasticsearch output problem

Elastic Stack Logstash
5

thanks aggain
but it seems to me logstash is actually reading my config file correctly

[2020-05-28T00:54:28,670][DEBUG][logstash.config.source.local.configpathloader] Reading config file {:config_file=>"/etc/logstash/conf.d/30-filter-nginx.conf"}
[2020-05-28T00:54:28,728][DEBUG][logstash.agent           ] Converging pipelines state {:actions_count=>1}
[2020-05-28T00:54:28,746][DEBUG][logstash.agent           ] Executing action {:action=>LogStash::PipelineAction::Create/pipeline_id:main}
[2020-05-28T00:54:30,260][DEBUG][org.logstash.secret.store.SecretStoreFactory] Attempting to exists or secret store with implementation: org.logstash.secret.store.backend.JavaKeyStore
[2020-05-28T00:54:31,539][DEBUG][org.reflections.Reflections] going to scan these urls:
jar:file:/usr/share/logstash/logstash-core/lib/jars/logstash-core.jar!/
[2020-05-28T00:54:31,588][INFO ][org.reflections.Reflections] Reflections took 45 ms to scan 1 urls, producing 21 keys and 41 values

and this is looped

[2020-05-28T01:05:21,091][INFO ][logstash.agent           ] Successfully started Logstash API endpoint {:port=>9600}
[2020-05-28T01:05:25,687][DEBUG][org.logstash.execution.PeriodicFlush][main] Pushing flush onto pipeline.
[2020-05-28T01:05:25,807][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2020-05-28T01:05:25,809][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2020-05-28T01:05:30,687][DEBUG][org.logstash.execution.PeriodicFlush][main] Pushing flush onto pipeline.
[2020-05-28T01:05:30,821][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2020-05-28T01:05:30,830][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}

and this didn't work
I have tried both /dev/null and nul