When importing sites into Website Pro it is recommended that you use All-in-One WP Migration Plugin. However, the free version of this plugin has size limitations (64MB maximum). If you want to import a site larger than 64MB into Website Pro, you have a couple of options:
Option 1
If your site is under 512MB, you can download the plugin to your computer, then install the plugin. This version allows you to migrate sites up to 512MB for free.
Option 2
Buy the All-in-One WP Migration Unlimited Extension for $69 (this is a one-time cost that can be used on unlimited sites) OR You can reach out to support@vendasta.com or Live chat to upload the Plugin for free.
Option 3
Import your site using one of the many other WordPress migration plugins.