I just received my Zmax from madvapes where I also ordered five 3.2 ohm cartomizers. I vaped through two cartos and then I filled the carto and the tank and screwed it on. When I went to take a drag nothing happened. I looked at the screen and it says "0.3o" and so I screwed on different cartos and attys and they all fire without flaw. So I take out the terrible little guide they give you and look at the error codes and all there is, is "LOU" Low Voltage Indication and "LOR" Low Resistance Indication. It sucks because I just filled it with juice and filled the 6ml tank so I dont want to lose all this juice. Has this happened to anyone else and do you know a fix for this problem? Also does anyone know what the "0.3o" is?