Erratum to: Emergent gauge bosons and dynamical symmetry breaking in a four-fermion Lifshitz model T. Mariz, R. Moreira and A. Yu. Petrov Eur. Phys. J. C, 79 9 (2019) 729 Published online: 30 August 2019 DOI: 10.1140/epjc/s10052-019-7243-0