previously it was working, when I reboot the server after it was not working
root@ubuntu-s-1vcpu-2gb-blr1-01:~# systemctl status jira
● jira.service - Atlassian Jira
Loaded: loaded (/etc/systemd/system/jira.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Wed 2019-09-11 13:32:14 IST; 49s ago
Process: 1668 ExecStart=/opt/atlassian/jira/bin/start-jira.sh (code=exited, status=0/SUCCESS)
Main PID: 1712 (code=exited, status=1/FAILURE)
Sep 11 13:32:13 ubuntu-s-1vcpu-2gb-blr1-01 start-jira.sh[1668]: [1B blob data]
Sep 11 13:32:13 ubuntu-s-1vcpu-2gb-blr1-01 start-jira.sh[1668]: Atlassian Jira
Sep 11 13:32:13 ubuntu-s-1vcpu-2gb-blr1-01 start-jira.sh[1668]: Version : 8.3.1
Sep 11 13:32:13 ubuntu-s-1vcpu-2gb-blr1-01 start-jira.sh[1668]: [19B blob data]
Sep 11 13:32:13 ubuntu-s-1vcpu-2gb-blr1-01 start-jira.sh[1668]: If you encounter issues starting or stopping JIRA, please see the Troubleshooting guide at https://docs.atlassian.com/jira/jadm-docs-
Sep 11 13:32:13 ubuntu-s-1vcpu-2gb-blr1-01 start-jira.sh[1668]: Server startup logs are located in /opt/atlassian/jira/logs/catalina.out
Sep 11 13:32:13 ubuntu-s-1vcpu-2gb-blr1-01 start-jira.sh[1668]: Tomcat started.
Sep 11 13:32:13 ubuntu-s-1vcpu-2gb-blr1-01 systemd[1]: Started Atlassian Jira.
Sep 11 13:32:14 ubuntu-s-1vcpu-2gb-blr1-01 systemd[1]: jira.service: Main process exited, code=exited, status=1/FAILURE
Sep 11 13:32:14 ubuntu-s-1vcpu-2gb-blr1-01 systemd[1]: jira.service: Failed with result 'exit-code'.
lines 1-16/16 (END)