Numbers 15:27

25 The priest is to make atonement for the whole congregation of Israel, so that they may be forgiven; for the sin was unintentional and they have brought to the LORD an offering made by fire and a sin offering, presented before the LORD for their unintentional sin.

26 Then the whole congregation of Israel and the foreigners residing among them will be forgiven, since it happened to all the people unintentionally.

Also, if one person sins unintentionally, he is to present a year-old female goat as a sin offering.

28 And the priest shall make atonement before the LORD on behalf of the person who erred by sinning unintentionally; and when atonement has been made for him, he will be forgiven.

29 You shall have the same law for the one who acts in error, whether he is a native-born Israelite or a foreigner residing among you.

This was said to Israel at a particular time, so it is wise to read it together with the surrounding text. Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
Also, if one person sins unintentionally, he is to present a year-old female goat as a sin offering.
KJV
And if any soul sin through ignorance, then he shall bring a she goat of the first year for a sin offering.
WEB
“‘If a person sins unwittingly, then he shall offer a female goat a year old for a sin offering.
ASV
And if one person sin unwittingly, then he shall offer a she-goat a year old for a sin-offering.
DARBY
And if one soul sin through inadvertence, then he shall present a yearling she-goat for a sin-offering.
BLB
And if one person sins in error, he shall bring a female goat, a daughter of a year, as a sin offering.
ÅB
Men når en enkelt mann synder av vanvare, da skal han ofre en årsgammel geit til syndoffer.
OTB
Hvis en enkeltperson synder utilsiktet, må den personen bringe en årsgammel geit som syndoffer.
B1930
Men når en enkelt mann synder av vanvare, da skal han ofre en årsgammel gjet til syndoffer.

Study notes (Tyndale)

Original text and word study

Cross references