Hi,
I am getting this message;
“Due to protection of web servers from repeated attacks, we were forced to restrict access to administrative interface of web pages to selected countries. If you are currently in a foreign country, please sign in to WebAdmin, proceed to your domain management and disable this GeoIP filter in CMS section.”
I could not check your website. Could you contact your hosting company to increase the upload limit at least to 128mb.
After that, try to import the dummy data again.
Thanks