Hello,
I was unable to replicate your error with Chrome and Miniclient. It seems you were able to get the game to work on other browsers and the Miniclient. Therefore, the problem most likely stems from your personal Chrome settings. I would suggest simply playing the game using the Miniclient or a different browser, but if you insist on playing on Chrome, you might start but uninstalling and reinstalling Chrome, which would help by returning you to the default settings.
Thanks!

Hello,
Information on the current login problems can be found on this thread:

https://forum-narutoen.oasgames.com/page/show-post-47667-1.html
Thanks!