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Weird I can't login, but I tried on the original Stake site it can, on the OP's web it can't.
Do not log in and be careful of duplicate sites that look the same, it will harm your account. just leave it and don't let adna browse that website. So far it might still look safe, because that's what they plan to do. Keep using sites you trust.
According to what I can tell, there's nothing wrong with the link that bcgs21 provided on his site. It's a plain url with a referall code. There's no redirection, no url shortening, nothing like that.
I'm not sure what problem YOSHIE encountered and why he couldn't log in, from my side everything looked fine.
Having said that, always use caution when accessing websites that are of great importance to you through links on third party sites; you may eventually end up on a phishing site that steals your personal information. For such sites, you should always have bookmarks saved or copy the correct url and paste it into the browser's url bar.