Bug disappearance car

Hello I just restart the game today and to my surprise I have no more cars (I’m lvl 50 and I made several race category so I always several cars) except a Toyota that I don 'just had not before I’d get my car’s all.
I have no answer to turn 10 if anyone can help me contact them or has another solution I thank in advance :wink:
sorry for my english I’m french