Rockville amp suddenly shine red light

Hello all ive had a kicker c10 paired with a rockville amplifier for about 6 months now in my ranger ran fine no issues untill today driving home and it suddenly just stopped working I look at the light and its red when I turn the truck back on it makes the sub go thump itll show a blue light then thump again and then flash to red if anyone can point me in the way of troubleshooting id greatly appreciate it first thing im gonna do is chase wires around