A bit of electrical help please. Trailer 4 pin on 1st gen

So decided to clean up an old trailer wiring set-up. After first attempt things were all working. Took the truck out without trailer and my right turn signal is rapid flashing. Flashes faster when brake is applied. Hooked trailer back up and no right turn and no left turn and no brake lights on trailer. My flashers run at correct speed. left turn signal normal speed. Can it be that my towing converter relay is bad? Causing the gremlins? Thanks for any help. I have the factory tow package.

 

That would be the first place I look at .

You have checked all the bulbs and cleaned all the sockets truck and trailer??