with my scooter, Hyosung MS3 burns the 30A fuse through.Who can help?

Hello, I’ve had the Hyosung 125 MS3 for half a year, yesterday it just went out, I found that the 30A fuse has burned out. A replacement has no sense as also a new fuse with switched off ignition immediately burns again. Did anyone ever have this problem before? Who can help? I’m grateful for any idea what it could be.