1 Erratum to: Eur. Phys. J. C (2021) 81:606 https://doi.org/10.1140/epjc/s10052-021-09387-z

These are the correct equations:

where

$$\begin{aligned} c_i = \left( -7.86078,5.49175, -0.54078\right) , \end{aligned}$$
(5.5b)

and

$$\begin{aligned}&{\mathrm {cov}}(c_i,c_j) = \left( \begin{array}{lll} 3.699760 &{}\quad -2.198586 &{}\quad -1.476913 \times 10^{-3}\\ -2.198586 &{}\quad 1.306512 &{}\quad 8.776569 \times 10^{-4}\\ -1.476913\times 10^{-3}&{}\quad 8.776569\times 10^{-4}&{}\quad 5.895710\times 10^{-7}\\ \end{array}\right) , \end{aligned}$$
(5.5c)

Also, ref. 24 was missing and should have been listed as follows:

24. J. Heitger, F. Joswig, A. Vladikas, C.Wittemeier, Non-perturbative determination of cv, ZV and ZS/ZP in \(Nf = 3\) lattice QCD. EPJ Web Conf. 175, 10004 (2018). arXiv:1711.03924. The citations have been updated accordingly in the article itself.

The original article has been corrected. The publisher apologizes for any inconvenience.