1 Erratum to: Eur. Phys. J. C https://doi.org/10.1140/epjc/s10052-020-8139-8

This erratum corrects some typos in the article.

In Ref.[1], Eq. (A17) should be corrected as follows:

$$\begin{aligned} \dot{\sqrt{g}}= & {} \left( \frac{\kappa ^2}{2} \right) \frac{N \pi }{1-D {\lambda }} +2 \nabla _i N^i. \end{aligned}$$
(1)

In Eq. (42), \(C^i\) should be read as \({\widetilde{C}}^i\).