Wheel horse 252 H engaging PTO switch causes engine to stall and shut off

[Donzo]

OK I fixed an issue with my tractor not running and having a gas feeding issue now I have a new issue. I tried mowing with my tractor and when I engage the PTO switch the engine stalls and then shuts off. I did some tracing of wires and cleaning the grounds ect and spraying all the electronic connections with deposits to help with any corrosion. I noticed when I unscrew the front panel that houses the ignition Switch, PTO, voltage read out, and headlight switch and hold the panel away from the chassis it runs fine and the PTO runs fine and the ignition switch wo t shut the engine off until I ground the front panel and then when the panel is grounded this is when the PTO switch shuts off the mower too in the same fashion as if I'm turning the ignition switch off. Does anyone know what this issue could be or is it just a shorted switch. Thanks in advance.