Bought a used 2021 DS3 about a month ago and everything was cruising along fine until earlier today. Now after a downpour, I'm suddenly dealing with some major issues. It started throwing errors like Gearbox fault and Electric traction system fault. Tried charging it up, but the indicator just stays red. What's worse, the beeping for the traction system fault won't stop, even after I locked the car and walked away! Anybody else run into these problems before? How did you fix it?