SingalRgb didn't detect my fans anymore

The first time I installl SignalRgb it want to detect all my devices and my fans on the front where flashing blue and they where working. And I don’t know why since, they just stop doing light. ANd when I uninstall SingalRGB et re-install, they’re where not flashing blue anymore.

If someone can help me to fix this plz. Thank you very much.