Sounds like it might have fried the Right Hand PCB board. Does your headlight work now as well? What about the left blinker and High/Low? Did the click noise of that Relay go away as well when you unplugged it?
If all is working now besides the right hand PCB we can do a quick test. You have the can jump the pins with the connector unplugged to confirm it is indeed the board.
First I would jump the Right Blinker confirm that activates it. To jump it you just have to use two leads or a paper clip and have one on the ground wire (black) and the other on the right blinker command (Brown)
Second, I would jump the RUN (Red to Black)and make sure the ignition module turns on and then you can jump the start button to see what happens (green to black).
If it works there it's time for a new PCB but you can double check your connection as well but considering what lead to this I think it was fried.
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