Opinion of Advocate General Bot delivered on 24 January 2019.#Mohammed Bilali v Bundesamt für Fremdenwesen und Asyl.#Request for a preliminary ruling from the Verwaltungsgerichtshof.#Reference for a preliminary ruling — Area of freedom, security and justice — Asylum policy — Subsidiary protection — Directive 2011/95/EU — Article 19 — Revocation of subsidiary protection status — Error on the part of the administrative authorities with respect to the facts.#Case C-720/17.