u/Due-Artichoke-3431

I just got a KUZ vape (6000 puffs) from this convenience store in Fremantle Perth, and we got one and we were hitting it but then it just randomly stopped so we got a new one and this one lasted a bit longer but it just added nowhere stopped working. I don’t know if it was overheating I think so so I’ve taken it apart like try to put everything but it’s still not working. Can somebody help me?