Akhazhanov, T. et al. 2024. Erratum to: “Coefficients of multiple Fourier-Haar series and variational modulus of continuity” [Bulletin of the Karaganda University. Mathematics series, No. 4(112), 2023, pp. 21–29]. Bulletin of the Karaganda University. Mathematics Series. 113, 1 (Mar. 2024), 218. DOI:https://doi.org/10.31489/2024m1/218.