Error of law
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
He is under an error of law who is truly informed of the existence of facts, but who draws from them erroneous conclusions of law. Civ. Code La. art.
1822. Mowatt v. Wright, 1 Wend. (N. Y.) 360, 19 Am. Dec. 508.