Sometimes the oil in your cartridge will end up stuck in the wrong place (see figures 1 & 2). Not to worry, this is a relatively simple issue to resolve. Usually, the cause of this is that you weren't storing your cartridge upright (click here for information on storing your cartridges).
Option 1 - Place your cartridge in your PurToke Vape Pouch and carry it in your pocket or somewhere else that touches your body (make sure the Vape Pouch tag is at the top) as you go through your day. Often times, just the heat from your body and the motion of your moving around will get your oil flowing back to where it should be.
Option 2 - Store your cartridge right side up in a warmer place (do not exceed 1oo° F) checking on it frequently to see if that solves the problem.
Option 3 - Put your cartridge in a watertight zip lock bag. WARNING!!!! You must make sure the bag is actually completely waterproof. If water gets in the bag, it may damage the electronics of your cartridge and make it inoperable. Only try this technique if you have tried the other 2 AND you know for absolutely certain that you have a water tight seal on the ziplock bag you are going to use.
Once you have your cartridge in a water tight bag, fill a sink, cup or bowl with warm tap water and place the bag with the cartridge into it. Make sure the water is not too hot. Check the oil frequently, if it starts to move freely inside the cartridge, remove it from the bag and store it upright until the oil flows back down.