Hello experts

I could not see a certain system SID from 「System Data」of launchpad.

And then we noticed that , that system was moved to 「list of deleted system」.

But we have not manually delete this certain system from 「System Data」at all.

Is there any rule? or something that automatically moves a certain system to 「list of deleted system」？

Do you guys have any assumptions of why this system is moved to [list of deleted system]?

As a result we cannot open remote connection for this system...