Corrigendum to "Simulation and Optimization of Lead-Based Perovskite Solar Cells with Cuprous Oxide as a P-type Inorganic Layer [J. Nig. Soc. Phys. Sci. 1 (2019) 72–81, https://doi.org/10.46481/jnsps.2019.13]". (2021). Journal of the Nigerian Society of Physical Sciences, 3(3), 190-190. https://doi.org/10.46481/jnsps.2021.332