Why does this Applescript not work when a task is in the inbox?

Why does this Applescript not work when a task is in the inbox?

It works when a task is not in the inbox.

tell application id "OFOC"
	tell front document
		tell content of document window 1 -- (first document window whose index is 1)
			set theSelectedItems to value of every selected tree
			if ((count of theSelectedItems) < 1) then
				display alert "You must first select an item to complete." as warning
				return
			end if
			repeat with EachItem in theSelectedItems
				set status of EachItem to active status
			end repeat
		end tell
	end tell
end tell

Any insight is appreciated.

Tasks doesn’t have ´status´ property; only Projects.