Error on elasticsearch

Hello!
I can not import the data (csv file) as I did before
Whenever I try to import the files the following error is displayed:

[2019-11-20T09:58:52,897][DEBUG][org.logstash.execution.PeriodicFlush][main] Pushing flush onto pipeline.

[2019-11-20T09:58:57,476][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}

[2019-11-20T09:58:57,477][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}

[2019-11-20T09:58:57,897][DEBUG][org.logstash.execution.PeriodicFlush][main] Pushing flush onto pipeline.

[2019-11-20T09:59:02,483][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}

[2019-11-20T09:59:02,484][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}

[2019-11-20T09:59:02,897][DEBUG][org.logstash.execution.PeriodicFlush][main] Pushing flush onto pipeline.

[2019-11-20T09:59:07,489][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}

[2019-11-20T09:59:07,489][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}

[2019-11-20T09:59:07,897][DEBUG][org.logstash.execution.PeriodicFlush][main] Pushing flush onto pipeline.

i note also that when checking the configuration the following message is displayed

[2019-11-20T10:01:00,849][DEBUG][logstash.outputs.elasticsearch] config LogStash::Outputs::ElasticSearch/@validate_after_inactivity = 10000
[2019-11-20T10:01:00,850][DEBUG][logstash.outputs.elasticsearch] config LogStash::Outputs::ElasticSearch/@http_compression = false
[2019-11-20T10:01:00,850][DEBUG][logstash.outputs.elasticsearch] config LogStash::Outputs::ElasticSearch/@custom_headers = {}
Configuration OK
[2019-11-20T10:01:00,873][INFO ][logstash.runner ] Using config.test_and_exit mode. Config Validation Result: OK. Exiting Logstash

Those are DEBUG and INFO messages, not ERRORs.