We have found a solution for the issue with broken names and have applied it to all game rounds. The user names have been fixed, and you should be able to log in correctly again. Alliance names, tags, and village names have also been (almost entirely) fixed.
If there are still broken characters in areas such as alliance notes or alliance ranks, you may need to change them manually according to your preference.
The game servers should reopen shortly.
Thank you for your patience.