Pretty much the title. I had a bug delete the book and I crafted a new one and everything was deleted from the book. I can't look at anything at all. I can't look at the encyclopedia, anything at all. I want to continue playing with the mod but as it is right now I can't do a thing.

Thanks in advance for your help. Here's a screenshot of the book: https://imgur.com/a/zomBQQD

The research in the book is linked to vanilla advancements, so you can use commands to add/remove advancement progress to edit the progress in the book.

If this issue happens again, please report it to the Patchouli devs, as they are the ones who maintain the manual.