Oh! Probably an electrical problem and not a leak then? That makes more sense, because the aerotank isn't supposed to have anywhere to leak in that 510 connection.
One other solution I've heard about is to take out the atomizer, and grind or file down the 510 threads on the base to take a milimeter off of it, so the atomizer pin will stick out a milimeter
To prevent leaking on battery, I acquired a few of these recently:
screw adapter down on the battery, and put the tank on the adapter; if the tank leaks, it leaks on the adapter, plus the adapter takes the wear and tear of unscrewing and no issue of interfering with center pin of battery from screwing and unscrewing in tanks.