If Greater then today or Blank = Active

Hi all my mind has gone blank, and yet I followed the help within excel but still getting '#NAME?'

What I have is

 =IF(OR($Z9>TODAY, $Z9=""), "Active", "Discharged")

What i'm trying to get is IF $Z9 is blank or greater then today it equals "Active" but if Fulse then it equals "Discharged"

I know I'm not seeing something but its going straight over my head.

PLEASE HELP

Regards

Rich