Why i can not use the @ in the game to connect

I create a new accont and in my password it has a “@” but in the game i can not wirte the @ so i can not login

Are you using an english keyboard layout?

no I use azerty , the french keyboard

BeamNG might not properly support that layout. Could you try typing the @ symbol into a search box like in the mod repository in-game?
You should able to paste to paste the symbol into BeamNG as a workaround for now.

yes it work tanks