Erratum to: Averaging generalized scalar-field cosmologies III: Kantowski–Sachs and closed Friedmann–Lemaître–Robertson–Walker modelsGenly Leon, Esteban González, Samuel Lepe, Claudio Michea and Alfredo D. MillanoEur. Phys. J. C, 81 12 (2021) 1096DOI: https://doi.org/10.1140/epjc/s10052-021-09910-2