how to install amd64 instead i386

Hi everybody,

I install solydx (debian based ) Amd64.

I have a local mirror ( for amd64) it works fine on one machine (pure debian)

On solydx64,

when I tried apt-get update, it worked correctly fine from remote repositoryserver, but it searched for i386 in from local repository .

here is my source file and errors

cat /etc/apt/sources.list
deb http://home.solydxk.com/production solydxk main upstream import
deb http://debian.solydxk.com/production testing main contrib non-free
deb http://debian.solydxk.com/security testing/updates main contrib non-free
deb http://community.solydxk.com/production solydxk main
deb file:/disk/ftp.fr.debian.org/debian jessie main contrib non-free

error:

# apt-get update
Réception de : 1 file: jessie InRelease [191 kB]
Err file: jessie/main i386 Packages
Fichier non trouvé ---------------> means File not found
Err file: jessie/contrib i386 Packages
Fichier non trouvé
Err file: jessie/non-free i386 Packages
Fichier non trouvé
W: Impossible de récupérer file:/disk/ftp.fr.debian.org/debian/dists/jessie/main/binary-i386/Packages
Fichier non trouvé --------> means file not found

YES SURE not found since I HAVE :

# ls /disk/ftp.fr.debian.org/debian/dists/jessie/main/binary-amd64/
Packages Packages.gz Packages.xz Release

Why it searched for binary-i386/Packages

Thanks for help

best regards