In the story about Lutgarda's vision, the three faults are not specified. Trying to identify the three faults mentioned in the story would be pure speculation and not within the scope of historical inquiry.

Why three and not two or four? Is this a homework question? How do I determine what you think is a fault versus a virtue or merit in a person, Pope, or leader? And what is the Wikipedia link supposed to do here - should I read it all?

Please see the guidelines for asking questions here.