You can just remove the broken link, then replace it with a new one. A good chain that could replace that one is a Shadow half link, or a Cult half link. I've had both of those chains and both are awesome. Matter of fact, I'm running a Shadow now. I've had it for well over 6 months now and I've had absolutely zero problems with it.
-Reps: JakeSalbert, Stephan.yupthatsme, bmxrider4lyfe, cb4130, mactive818, Broughton, Dream, Kymike(X2), Sam.cooper1291, louie101202, nshs2010, hatebreeder, justin vogelsberger, Xlilkillaluc15x, Four, Blakebmx92, Brian_Griffin, Element4all
-I have more reps from my old account.
(My old account is 'bmx')