Paranormal DNA 250C mod smokes while screwing on tank


I had recently purchased a wotofo profile rda. I switched out the bottom screw that has the hole to squonk it, for the screw that turns the rda into a dripper. I then proceeded to put the canthal strip into the slots and it went off and burnt my finger. Ever since then, I went back to put my other Falcon tank back on, and as soon as I screw the tank on, it starts to go off and smoke without pushing the button. So I tried different batteries, and that didn’t fix it. I tried my other different tanks, and it also the same problem. Did I just break my mod???