Logstash keystore Error

Hello everyone,

Can someone help me to solve this error please?

adminsys@logstash:/etc/logstash # /usr/share/logstash/bin/logstash --path.settings /etc/logstash -t
Thread.exclusive is deprecated, use Thread::Mutex
Sending Logstash logs to /var/log/logstash which is now configured via log4j2.properties
[2021-01-11T10:19:16,945][FATAL][logstash.runner          ] The given configuration is invalid. Reason: Found a file at /etc/logstash/logstash.keystore, but it is not a valid Logstash keystore.
[2021-01-11T10:19:16,968][ERROR][org.logstash.Logstash    ] java.lang.IllegalStateException: Logstash stopped processing because of an error: (SystemExit) exit