These errors can occur for a few reasons. The main one is that a Chrome Extension such as an AdBlocker or other service is blocking part of the site's functionality. While we don't run ads, these can still interfere with some parts of the site.
Second, if you still can't join or host a game, you may need to make sure firebaseio.com is unblocked on your device. We use this site for part of our backend, so if there is a firewall blocking it, you may not be able to use parts of the site (however, this will not affect your ability to log in).
Usernames are case sensitive, so if you are trying to log in with a username, please ensure you are signing in with the exact name you registered with.
For a more detailed guides, view our full article(s) here: