Unknown problem somewhere in the system

[011248163264]

Hi i have Version: 2.3.220 with 32gb ram on a 4code microserver.
After i running the system few months i found a issue ind the so hunt section:
cmin4 is a client of my SO

count 62400 / "Unknown problem somewhere in the system." | groupby event.module event.dataset

Apr 25 23:19:53 cmin4 auditbeat: 2023-04-25T23:19:53.818+0200#011ERROR#011[publisher_pipeline_output]#011pipeline/output.go:154#011Failed to connect to backoff(elasticsearch(http://localhost:9200)): Get "http://localhost:9200": dial tcp 127.0.0.1:9200: connect: connection refused

message:
{"timestamp":"2023-04-25T21:19:54.253+0000","rule":{"level":2,"description":"Unknown problem somewhere in the system.","id":"1002","firedtimes":442,"mail":false,"groups":["syslog","errors"],"gpg13":["4.3"]},"agent":{"id":"002","name":"cmin4.011235813213455.dk","ip":"37.128.222.7"},"manager":{"name":"lupe-wazuh-manager"},"id":"1682457594.65993214","full_log":"Apr 25 23:19:53 cmin4 auditbeat: 2023-04-25T23:19:53.818+0200#011ERROR#011[publisher_pipeline_output]#011pipeline/output.go:154#011Failed to connect to backoff(elasticsearch(http://localhost:9200)): Get "http://localhost:9200\": dial tcp 127.0.0.1:9200: connect: connection refused","predecoder":{"program_name":"auditbeat","timestamp":"Apr 25 23:19:53","hostname":"cmin4"},"decoder":{},"location":"/var/log/messages"}

i have a semilar issue with filebeat and metricbeat