not working

getting this:
Starting MySQL…
Job for mysql.service failed because the control process exited with error code.
See “systemctl status mysql.service” and “journalctl -xe” for details.
ERROR: MySQL failed to start – exiting.
RESULT=1

===================
INSTALLATION ERROR!
===================
Installation step failed – exiting.
Check for error messages in the install log (install.log).

If you require assistance in resolving the issue, please include install.log
in your communications with Nagios XI technical support.

The script that failed was: ‘./3-dbservers’
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All SET! Go in peace!
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