This wiki uses UTF-8 to encoded characters. This means that all non-ASCII characters such as accented characters, cyrillic characters, Arabic characters, Chinese characters – are encoded in a specific way.
If you create a new page by editing the URL, there is a little problem: Technically, an URL may not contain non-ASCII characters. Some browsers will therefore encode the characters using UTF-8, and there will be no problem. Other browsers will encode such characters using Latin-1, or not at all, and this will lead to the problem you are seeing: When the wiki tries to display the UTF-8 encoded page title, it will find bytes it cannot display because these bytes are actually the Latin-1 encoding of a character. Many browsers will therefore display a questionmark or an empty box instead.
Solution:
[[Nëw pägë]] and save.Documentation: Oddmuse:Lock Files
You can’t save your edits and you get the above message. That means the wiki crashed when somebody else wanted to save something. This is not necessarily a sign for alarm. Do let us know on the Forum page if you keep seeing it, however.
Here’s how to unlock your site: