One of two things.
You blew the mid bass driver. Since this is a Pro-Axial driver, there is 2 drivers. A mid bass driver and a compression driver. So you can blow one of them and the other will still play.
The speaker connector from the crossover to the mid bass driver may have come undone.
So you can pull the driver and see if it is connected. If it is and still nothing.
Call Gyver on monday 877-938-7757 about sending the driver in and getting it repaired.