For six dimensional nilmanifolds we build a module $\mathcal{ H}$ of an affine Kac Moody vertex algebras. Then, we associate some logarithmic fields for the module $\mathcal{ H}$ and we study their singularities. We also presented a physics motivation behind this construction. We study a particular case, we show that when the nilmanifold $N$ is a $k$ degree $S^1$--fibration over the two torus and a choice of $l \in \mathbb{ Z} \simeq H^3(N, \mathbb{ Z})$ the fields associated to the space $\mathcal{ H}$ have tri-logarithm singularities whenever $kl \neq 0$.
Categories: math-ph hep-th math.DG math.MP