Erratum to: Exclusive photoproduction of a heavy vector meson in QCDD. Yu. Ivanov, A. Schäfer, L. Szymanowski and G. KrasnikovEur. Phys. J. C, 75 2 (2015) 75DOI: https://doi.org/10.1140/epjc/s10052-015-3298-8