Destroyed My Outpost, Cannot rebuild or rebuy site.

Destroyed my outpost in the build menu. I am unable rebuild as it does not appear in the menu as an option. I also cannot buy the burial site that it was on as it says I already own it. Burial site name is Mound City. In the Available burial sites screen it says 1/200 burial sites owned, however I see 2 sites that say owned. Am I screwed on building on this site?