Zabbix Agent doesn’t start – Failed with result ‘exit-code’.

We encountered problem after fresh installation of Zabbix Agent in Ubuntu. Zabbix Installation Error zabbix_agentd[4770]: zabbix_agentd [4770]: /etc/zabbix/zabbix_agentd.conf.d: [2] No suc systemd[1]: zabbix-agent.service: Control process…