I have GeoNetwork on Debian server (With Jetty). On the GeoNetwork home/main page, message saying "No search service available currently!". On the dashborad, it seems to have 3 non critical system errors. One regarding dashboard application. Another regards index is in readonly mode. Another regards metadata index errors. And one remote index critical system error. When i click on the remote index, there is the following message :

Connection refused java.net.ConnectException: Connexion refusée

When i try to start elasticsearch as root, the message says :

_root@XXXXXXX:/opt/elasticsearch/bin# ./elasticsearch
\[2023-08-30T08:06:53,691\]\[ERROR\]\[o.e.b.ElasticsearchUncaughtExceptionHandler\] uncaught exception in thread \[main\]
org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root
Caused by: java.lang.RuntimeException: can not run elasticsearch as root
at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:107) ~\[elasticsearch-7.17.8.jar:7.17.8\]__

An when i try to start as simple account :

\[2023-08-30T08:10:25,302\]\[ERROR\]\[o.e.i.g.GeoIpDownloader  \]  exception during geoip databases update
java.net.SocketTimeoutException: Connect timed out
main ERROR RollingFileManager (/opt/elasticsearch/logs/elasticsearch\_server.json) java.io.FileNotFoundException: /opt/elasticsearch/logs/elasticsearch\_server.json (Permission non accordée) java.io.FileNotFoundException: /opt/elasticsearch/logs/elasticsearch\_server.json (Permission non accordée)
2023-08-30 08:10:02,624 main ERROR Could not create plugin of type class org.apache.logging.log4j.core.appender.RollingFileAppender for element RollingFile: java.lang.IllegalStateException: ManagerFactory \[org.apache.logging.log4j.core.appender.rolling.RollingFileManager$RollingFileManagerFactory@1f75a668\] unable to create manager for \[/opt/elasticsearch/logs/elasticsearch\_server.json\] with data \[org.apache.logging.log4j.core.appender.rolling.RollingFileManager$FactoryData@35399441\[pattern=/opt/elasticsearch/logs/elasticsearch-%d{yyyy-MM-dd}-%i.json.gz, append=true, bufferedIO=true, bufferSize=8192, policy=CompositeTriggeringPolicy(policies=\[TimeBasedTriggeringPolicy(nextRolloverMillis=0, interval=1, modulate=true), SizeBasedTriggeringPolicy(size=134217728)\]), strategy=DefaultRolloverStrategy(min=-2147483648, max=2147483647, useMax=false), advertiseURI=null, layout=ESJsonLayout{patternLayout={"type": "server", "timestamp": "%d{yyyy-MM-dd'T'HH:mm:ss,SSSZZ}", "level": "%p", "component": "%c{1.}", "cluster.name": "${sys:es.logs.cluster\_name}", "node.name": "%node\_name", "message": "%notEmpty{%enc{%marker}{JSON} }%enc{%.-10000m}{JSON}"%notEmpty{, %node\_and\_cluster\_id }%notEmpty{, "trace.id": "%trace\_id" }%exceptionAsJson }
2023-08-30 08:10:02,626 main ERROR Unable to invoke factory method in class org.apache.logging.log4j.core.appender.RollingFileAppender for element RollingFile: java.lang.IllegalStateException: No factory method found for class org.apache.logging.log4j.core.appender.RollingFileAppender java.lang.IllegalStateException: No factory method found for class org.apache.logging.log4j.core.appender.RollingFileAppender
2023-08-30 08:10:02,687 main ERROR RollingFileManager (/opt/elasticsearch/logs/elasticsearch.log) java.io.FileNotFoundException: /opt/elasticsearch/logs/elasticsearch.log (Permission non accordée) java.io.FileNotFoundException: /opt/elasticsearch/logs/elasticsearch.log (Permission non accordée)
2023-08-30 08:10:02,706 main ERROR Null object returned for RollingFile in Appenders.
2023-08-30 08:10:02,707 main ERROR Null object returned for RollingFile in Appenders.
2023-08-30 08:10:02,707 main ERROR Unable to locate appender "rolling" for logger config "root"
2023-08-30 08:10:02,707 main ERROR Unable to locate appender "rolling\_old" for logger config "root"\_