Problem with the FI light on my Vulcan 900 custom 2008?

I own a Vulcan 900 custom 08. The bike is great and has been running good but a few deays ago when I went to turn it on the FI light came on when I tried to start and a weird clicking sound. The bike will not start. The starter doesen't even crank. When I flip the kill engine switch the clicking sound goes away, when I turn it back there is no change , only when I try to start the engine thats when the clicking sound comes back and the FI light starts to flicker. Hope this is not to confusing.