Hello, Marta,
In order to assist you, we would appreciate it if you could provide us with URL of your site, temporary wp-admin and FTP access.
To provide wp-admin access, you can create a new user account with administrator role via the Dashboard, and provide us with the username and password via the Private Content area.
To create FTP access, please contact your hosting provider for assistance.
We look forward to your reply.
Kind Regards,
8theme team