Reply To: Can the main page header be a slider?

[Bidur]

You got to switch themes and delete the one which is not activated. We again request you to follow the documentation thoroughly. ALternatively you can also update the theme http://www.wpbeginner.com/wp-themes/how-to-update-a-wordpress-theme-without-losing-customization/ via FTP

Note: Always make a backup of your site before proceeding.

Best Regards,