What does Numbers 15:25 mean?

And the priest shall make atonement for all the congregation of the children of Israel, and they shall be forgiven; for it was an error, and they have brought their oblation, an offering made by fire unto Jehovah, and their sin-offering before Jehovah, for their error:

And the priest shall make an atonement for all the congregation of the children of Israel, and it shall be forgiven them; for it is ignorance: and they shall bring their offering, a sacrifice made by fire unto the Lord, and their sin offering before the Lord, for their ignorance:

And the priest shall make atonement for all the congregation of the children of Israel, and they shall be forgiven; for it was an error, and they have brought their oblation, an offering made by fire unto Jehovah, and their sin-offering before Jehovah, for their error:

So the priest will make the people free from sin, and they will have forgiveness; for it was an error, and they have given their offering made by fire to the Lord, and their sin-offering before the Lord, on account of their error:

`And the priest hath made atonement for all the company of the sons of Israel, and it hath been forgiven them, for it <FI>is<Fi> ignorance, and they--they have brought in their offering, a fire-offering to Jehovah, even their sin-offering before Jehovah for their ignorance;

And the priest shall pray for all the multitude of the children of Israel: and it shall be forgiven them, because they sinned ignorantly, offering notwithstanding a burnt offering to the Lord for themselves and for their sin and their Ignorance:

And the priest shall make atonement for the whole assembly of the children of Israel, and it shall be forgiven them; for it was a sin of inadvertence, and they have brought before Jehovah their offering, as an offering by fire to Jehovah, and their sin-offering for their [sin of] inadvertence;