Having trouble importing demo content

I have been trying to install Enfold 2017 demo in WordPress. I have changed the wp-config.php file and added the line “define(‘WP_MEMORY_LIMIT’, ‘256M’);”
now I am getting this error below that I have no idea how to deal with. Can someone give some insight into what is going on?

Version 4.7.4
Importing didnt work!
You might want to try reloading the page and then try again
(The script returned the following message:

Media “” already exists.
Media “” already exists.
Media “Advanced Visual Layout Editor” already exists.
Media “Easy to use for Beginners and Pros, Young and Old” already exists.
Media “Responsive Design” already exists.
Media “24/7 Support” already exists.
Media “Powerful Theme Options” already exists.
Media “Regular Updates” already exists.
Media “” already exists.
Media “” already exists.
Media “” already exists.
Media “” already exists.
Media “” already exists.
Media “” already exists.
Media “” already exists.
Media “” already exists.
Media “” already exists.
Media “” already exists.
Media “” already exists.
Media “” already exists.
Media “” already exists.
)