We were 'blissfully ignorant''of' the problems that had occurred.
She was 'ignorant' about the dangers of the drug.
They were 'ignorant' [='unaware'] 'of' the facts.
(..) the victim's jaws open... ...with a crowbar. Where do you get this shit? I read it. You know how to read, you ignorant fuck? Honey! You shouldn't! Bogs didn't put anything in Andy's mouth. And neither did his friends. (..)1994 The Shawshank Redemption