Can not start sbd service

Dear expert,
i have problem with sbd service. I can not start sbd service. when i try to start i get the message " Failed to start sbd.service: Operation refused, unit sbd.service may be requested by dependency only.".
Have a nice day
thanks for your reading my post

@tuan Hi, your posting in the wrong place with the last two posts :wink:
Can you repost over in

Thanks Malcolm