yurosis

Hi all. I recently bought a Riing 12 RGB. I have 3 riings hooked up to one controller and the controller connected to a system fan connector on the mobo, but the controller seems to be unresponsive no matter which button I push? The little led light on the controller is also constantly on blue when before it was able to switch between red and blue. My fans are currently white but i can still faintly see red/green/blue colors being lit. I'm not sure what happened between the controller/fans working fine initially and no longer functioning as intended now. Help would be great, thanks!