Describe the bug
Opening a named cat book with no cats in it crashes the game

To Reproduce
Steps to reproduce the behavior:

get a cat book (do not register a cat to the cat book.)
name it something using an anvil, for example ''Kittens'' (no matter what it's called, it will crash)
right click it to open it.
the game will crash

Expected behavior
A clear and concise description of what you expected to happen.

if the book is empty, it would state that the book is empty.

Logs (REQUIRED)
Provide a link to a pastebin.com (or similar site e.g. hastebin, hatebin) containing the contents of an associated crash report, latest.log, and a debug.log, if available. Server's logs if server side, client's logs if client side.

Here you go: https://pastebin.com/RSgZ6wR5

Screenshots
If applicable, add screenshots to help explain your problem.

Versions (please complete the following information):

• Minecraft [1.20.1]
• Forge [release forge-47.3.0]
• Simply Cats [simplycats-1.20.2-2.5.25]
• list all other mods associated with the pack that crashed (a screenshot is okay)

Additional context
Add any other context about the problem here.

My friend and i both tested this bug and we both crashed.

This is my first bug report so i'm sorry if i did anything wrong!!

btw the [simplycats-1.20.2-2.5.25] is actually simplycats-1.20.1-2.5.25]