Your e-cigarette will not work if any e-liquid has found its way down the narrow centre pipe of the clearomizer chamber. Even the most experienced of vapers experience this issue on a regular basis.
It's always a good idea to check for blockage in this pipe, so try the following remedy: unscrew the clearomizer, place a tissue where the battery was and blow into the mouth piece a couple of times. If there was any e-liquid in the centre pipe this should remove most of it. Now screw it back on and try your e-cigarette again.