Correction to: Conversions between gas-phase metallicities in MaNGA.

This document is a correction to a previous article on gas-phase metallicities in MaNGA. The correction addresses an error in the calculation of O3N2-based calibrations, resulting in incorrect metallicity values. The correction decreases the raw metallicity values for these calibrations and slightly increases the number of overall spaxels with metallicities. The document also includes additional tables showing the number of metallicity values per calibration and the scatter of emission-line permutations between calibrations. The update on the polynomial fits used in the study shows a shift in the fits when converting between different calibrations, with a median magnitude of 0.032 dex. Some figures in the original study are affected, but most are not visibly different. The emission-line data used in the study is publicly available, and metallicity values can be obtained upon request. [Extracted from the article]