Objection of administrative sanction imposed by the council of ministers for lack of income from Social Security contributions: sanctioning type and exculpatory causes of responsibility. Comment to the STS (social) no. 969/2018, of November 20 (objection of acts of the Administration No. 2/2018). Revista de Derecho de la Seguridad Social, Laborum, n. 21, p. 115–133, 27 Dec.2019.