фактическая ошибка(Black' Law Dictionary – A mistake about a fact that is material to a transaction; any mistake other than a mistake of law. Also termed: error in fact; error of fact. алешаBG)
юридическая ошибка(ошибка в праве; Black's Law Dictionary – A mistake about the legal effect of a known fact or situation. Also termed: error in law; error of law. алешаBG)