Recently, I've filled up my mod with a mixture of a couple types of juices, for the lack of a better choice. One is 1 nic, one is 3, and one is 24. This has been working just fine for me, but I purchased THC infused e-liquid and the person I got it from told me that you can mix it with regular nic juice to make it taste better. I filled up half of the tank with nic juice and half with THC. This worked fine, but the day after, my mod would not work. It's not dead because the button doesn't light up. Someone told me I need a new tank - is this accurate? What should I do?