Grasshopper Mid Mount Mower - Blades will not disengage

[cobra97forme]

I have a '09 Grasshopper Mid mount and I was mowing yesterday. I was going to get off the mower to get some trash out of the yard, but I could not get the blades to stop. I tried cycling the PTO switch several times, but I could not get the blades to stop turning. What could be wrong?

 

[grasshopper972]

Never had such a problem. I'd check the fuses in the panel next to seat? Or maybe the safety switch under the seat?