Describe the bug
Whenever you get a book from the creative search menu and not the simply cats tab, the books will crash the game upon being opened, whether there's any cats logged in it or not.

To Reproduce
Take a book from the creative search menu and open it.

Expected behavior
Should display the message that is displayed upon an empty book being opened, and should NOT crash when opening with a cat logged in the book.

Versions (please complete the following information):

• Minecraft 1.16.5
• Forge 36.1.12
• Simply Cats 0.1.3
• other mods: can't remember but i don't think i had any at the time

Additional context
this is very important, as it is a crash, and people in creative mode might lose progress if their game hasn't autosaved yet.