Hi Toufiq,
I apologize for my delay in reply. The notification that you answered went into spam but when Keith added his comments I saw it.
The backend credentials with super admin permissions were included above. Can you pull a backup from there (Akeeba is already installed). If you prefer FTP access to grab a backup file, just let me know.
Also, in your request was to give you a backup: how could I have done that other than giving admin access to the site? There is no option to add attachments to support tickets.