How I reproduced consistently:
Step #1: Go to the RuinsCraft creative server (Server address play.mcatlas.com then in chat say "/plots")
Step #2: Get a Book and Quill
Step #3: Write or click the Book and Quill while it's open and eventually I got a crash
Thank you for your report!
We're actually already tracking this issue in MC-149792, so I resolved and linked this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature in the future to see if the issue has already been reported.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki