This is not an error of duplication. The full-fledged version of this Mitzvah are many and change for those who are learning the one/three chapter a day. The Message for the day from "Bringing Heaven Down to Earth" at the end of this Mitzvah is different than that of yesterday.

Positive Mitzvah 70: The Guilt-offering for questionable guilt
Leviticus 5:17 "Though he did not know it [if he sinned for sure], yet he is guilty, and shall bear his iniquity"

If a person is unsure if he committed any of the forty-three acts punishable by Karet (see above, Positive Mitzvah 69), he is commanded to bring this offering for his questionable guilt.

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A person must be on fire -- the fire of an altar burning up the ego inside, bringing the animal close to the divine. A large ego burning makes a lot of noise. A small ego burns quietly.

From: Bringing Heaven Down to Earth by Tzvi Freeman - tzvif@aol.com