Erratum to: Photocouplings at the pole from pion photoproductionD. Rönchen, M. Döring, F. Huang, H. Haberzettl, J. Haidenbauer, C. Hanhart, S. Krewald, U. -G. Meißner and K. NakayamaEur. Phys. J. A, 51 5 (2015) 63DOI: https://doi.org/10.1140/epja/i2015-15063-6