"If the whole Israelite community sins unintentionally and does what is forbidden in any of the LORD's commands, even though the community is unaware of the matter, when they realize their guilt" (NIV)
If the whole congregation of Israel sins unintentionally, and it be hidden from the eyes of the assembly, and they have done what the Lord has commanded not to be done and are guilty, (AMP)
And if the whole congregation of Israel sin through ignorance, and the thing be hid from the eyes of the assembly, and they have done somewhat against any of the commandments of the LORD concerning things which should not be done, and are guilty; (KJV)