I do not understand your English.
I do not think that is the vamo.
I do not think that is your nautilus.
So what is that? "the + side of where the battery goes"... so is that like the view from the bottom of the vamo?
See the top of this vamo? In the midde is the CENTER PIN.
On any mod, sometime screwing the tank/topper/atomizer too hard down presses the center pin in too much and you have to pull it back up with a toothpick;
another thing that can go wrong is on the tank/topper side:
The center pin on the tank/topper is so close to the sides, that sometimes it can end up shorting out on the side