2012 RZT42 PTO Wont Engage

Got a 2012 RZT42 Cub. About 2 seasons ago I noticed that when it got hot after being run for a while, the blades would not engage right away after being turned back on. This just kept getting worse, now last week the PTO shut off while engaged and mowing. Now I cannot get the PTO to engage again. Am I looking at a new electric clutch? Thanks for any help, you all can provide.

You will need some help to test this. Someone needs to sit on the seat and turn the key to run. Unplug the wires that go to the PTO and turn the PTO on. Now check for 12v or higher at the plug.