I can not Login to Stage.steemiz.io

I hope this is not actually what am thinking. i have been making report and contributing to Stage.steemiz.io open source development for a few days now and have been away for like 3 days due to network issues.
came back online today and decide to return back to my work which is creating contributions but what surprise me is that i could not login to stage.steemiz.io site when i click connect at the top right hand corner.

i think this is a bug or it is something else, i hope it is not only me this is happening to. Without me/us having access to the site, lot of working and contribution will be on pending which are:

• i can not upvote post i wish to upvote
• i can not comment on post because it always tell me to sign up for steemit and am already a member

• i can not post talkless of making and detecting bugs and ideas to contribute to the development of this site.

have been refreshing and refreshing on the site for more than an hour thinking this is a fault from my broswer Firefox. you can check the screen video below

please i hope this can be fix on time. i want members to login and confirm please