Correction to: 'Probing the He ii re-Ionization ERa via Absorbing C iv Historical Yield (HIERACHY) I: A Strong Outflow from a z ∼ 4.7 Quasar' (2021, MNRAS, 505, 4444). Issue 2 (24th November 2022) - Yu, Xiaodi; Li, Jiang-Tao; Qu, Zhijie; Roederer, Ian U; Bregman, Joel N; Fan, Xiaohui; Fang, Taotao; Johnson, Sean D; Wang, Feige; Yang, Jinyi