I have the eleaf I stick tc 100w with a vpark maxtank pro coil resistance is 0.1/0.3 , when I screw the atomiser (tank) onto the unit and press the button to vape it says atomiser too low so I have to unscrew the atomiser then screw it back on about half way (which leaves it wobbly) it works fine but sometimes it will say atomiser too low and have to repeat the same procedure,what am I doing wrong? Can anyone help please?