Hello, the devs have been working on this. They have requested that players ensure they enable TLS protocols 1.1 and 1.2 on web browsers. Please let us know if you still have issues after doing so.

https://engagingnetworks.support/knowledge-base/manually-enabling-tls-1-1-and-or-tls-1-2-protocols-on-web-browsers/

It could also be an issue with the browser. While we try to address this, many have found that they are able to login if they have a previous version of their preferred browser. If this does work for you, I advise that you adjust your browser settings to stop auto-updates, for now.