Error: wandering or straying from what is correct or true.
Erratum: a mistake in a book or publication.
Aberrant: straying or differing from the right, normal, or natural type.
Errant: 1. wandering or moving about aimlessly. 2. straying outside proper bounds, or away from a an accepted or pattern or standard.
Erratic: 1. having no fixed course. 2. lacking consistency.
Erroneous: mistaken, incorrect.