[2022-05-03T22:21:09,880][ERROR][org.logstash.execution.WorkerLoop][main] Exception in pipelineworker, the pipeline stopped processing new events, please check your filter configuration and restart Logstash.
org.jruby.exceptions.NoMethodError: (NoMethodError) undefined method `keys' for #String:0x6c1a80ac
at RUBY.flatten(/vendor/local_gems/978a9a1d/logstash-filter-flatten_json-0.1.0/lib/logstash/filters/flatten_json.rb:68) ~[?:?]
i am reading flatten json file as same as other logs file, logstash-flatten-json-filter is this plugin fine to support flatten json or need to use another plugin?
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