Correction to: Annals of Global Analysis and Geometry (2022) 62:507–532 https://doi.org/10.1007/s10455-022-09863-z

It has been observed that the proof of Lemma 5.5 in the paper [3] is not complete. It was pointed out in [1] by Prof. S. Borghini and L. Mazzieri, and in [2] by Prof. G. Catino, D. Dameno and P. Mastrolia. In the proof, a particular frame of vector fields is constructed in order to establish formulas for \(|\nabla \omega |^2\) and \(|\delta \omega |^2\). The derived formula for \(\delta \omega \) might not be correct as they pointed out because the Lie bracket of these frames does not necessarily vanish.

Consequently, Theorem 1.1 in [3] is still valid. But it remains unclear whether or not Theorem 1.2 is true.