Dev should probably check availability of the site or server and quality of connection or something. The site itself takes enormous time to load, game keeps disconnetcting from server and won't connect again. And no, firewall and anti-virus are not blocking the game, it even works sometimes.
I like this type of games, I don't even care about the whole login thingy. But please. If you're gonna make playing your game complicated out of nowhere, make sure you provide enough support for your "bright idea". Because I'm for sure not buying a game that can just stop working.