Lost space station.

I built a space station in my home planet system. It disappeared. It still shows in the navigator bookmarks, but when i click on it nothing happens. What could have caused this?

 

the space stations have something like an id, or, an instance to define them. starbound may have deleted it, for an unknown reason, or maybe your space station changed instance/id and your world (instance or celestial) hadn't received the command to update the space station's instance/id, so maybe it's still there, but only accesible through admin commands, or a mod made for this exact situation.