バグだと思われます。　文字化けしています。

英語じゃないとだめですよ

Thank you for your report!

Thank you for taking the time to report a bug. Unfortunately we are only able to accept bug reports in English. You are welcome to use an online translator, if that helps. (You can find an example bug ticket here.)

Also, we'd recommend making use of the search feature before writing a new bug report, as it's very likely that the issue has been mentioned already, and you can add a vote and any new information to the main ticket.

Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki