You might check out recent forum posts in the easy-installer and Easy Installer sections.
It seems a recurring problem, keywords being “Download fails” or “Try again”. I suggest you study one or two recent posts if they seem a bit like yours, perhaps dig out the log Howto troubleshoot issues with the easy-installer.
Well, when downloading a new ROM, one would generally want the latest.
The current issue seems to involve programmatically finding latest is a problem for Easy Installer either locally and / or remotely at selection of files from /e/ servers.