「エラーなし、ワールドが一切作成できない」

We are only able to accept bug reports in English since it is the common language used on this tracker.

You are welcome to create a new ticket about your issue in English. You can use an online translator, if it helps.
However, please search before writing a new bug report, as it's very likely that someone else already reported your issue before.
If you find an existing ticket about your issue, you can add a vote and any new information to it instead of reporting it yourself.

Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support (Technical Issues) – 📧 Microsoft Support (Account Issues)
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki