🚀 go-pugleaf

Can someone please tell me where I am going wrong here. I need to establish whether a paragrph (that contains a character @) is greater than 2 lines long.
This script errors

tell application "InDesign 2.0.2"
	activate
	set myselection to selection

	set myreturn to search myselection for "@"
	repeat with n from (count of myreturn) to 1 by -1
		set myStory to parent story of item n of myreturn
		set myIndex to index of item n of myreturn
		set mypara to paragraph 1 of character myIndex of myStory
		if (count of lines of mypara) is greater than 2 then
			display dialog "There are more than 2 lines"
		end if



	end repeat

	display dialog "End"
end tell

Any help (as always) would be good!

Cheers

Roy