I am unable to restart my elasticsearch 7.6.2 as I am getting below exception, Can someone help me out regarding this issue.
ELK elasticsearch[3805]: OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely May 08 01:53:49 ELK elasticsearch[3805]: Exception in thread "main" org.elasticsearch.bootstrap.BootstrapException: org.apache.lucene.index.Corrup May 08 01:53:49 ELK elasticsearch[3805]: Likely root cause: org.apache.lucene.index.CorruptIndexException: misplaced codec footer (file extended?) May 08 01:53:49 ELK elasticsearch[3805]: at org.apache.lucene.codecs.CodecUtil.validateFooter(CodecUtil.java:497) May 08 01:53:49 ELK elasticsearch[3805]: at org.apache.lucene.codecs.CodecUtil.checkFooter(CodecUtil.java:414) May 08 01:53:49 ELK elasticsearch[3805]: at org.elasticsearch.common.settings.KeyStoreWrapper.load(KeyStoreWrapper.java:282) May 08 01:53:49 ELK elasticsearch[3805]: at org.elasticsearch.bootstrap.Bootstrap.loadSecureSettings(Bootstrap.java:234) May 08 01:53:49 ELK elasticsearch[3805]: at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:305) May 08 01:53:49 ELK elasticsearch[3805]: at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:170) May 08 01:53:49 ELK elasticsearch[3805]: at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:161) May 08 01:53:49 ELK elasticsearch[3805]: at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) May 08 01:53:49 ELK elasticsearch[3805]: at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:125) May 08 01:53:49 ELK elasticsearch[3805]: at org.elasticsearch.cli.Command.main(Command.java:90) May 08 01:53:49 ELK elasticsearch[3805]: at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:126) May 08 01:53:49 ELK elasticsearch[3805]: at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) May 08 01:53:49 ELK systemd[1]: elasticsearch.service: Main process exited, code=exited, status=1/FAILURE May 08 01:53:49 ELK systemd[1]: elasticsearch.service: Failed with result 'exit-code'. May 08 01:53:49 ELK systemd[1]: Failed to start Elasticsearch. -- Subject: Unit elasticsearch.service has failed