Verified answer

nächtens means "in the night"

it's an old word, that we don't use anymore.

It means "at night."

Nächtens haben Gram und Sorgen

In dein Herz sich eingenistet,

Und auf Tränen blickt der Morgen

.

At night have grief and sorrow

Lodged themselves in your heart,

And tears on the faces morning.