HANA LCM error

Hi,

I am trying to deploy content from LCM.

When i start LCM , i get the following message

Could not check credentials provided for user <sidadm> on host hana5.xxxx.org.

Could not connect to sap host agent on host hana03.xxxx.xxx.com.Check that it is running
HTTP transport error: java.net.ConnectException: Connection refused

We are on HANA SP6.

Please let me know how to check if host agent is running and steps to resolve the issue.

Thanks,

Rajiv