Book entries doesn't load

[Alexis-Silvery]

Book entries doesn't load

[williewillus]

Have you read the log errors/the log message shown in your screenshots? One of the pages has an invalid item declared.

[Alexis-Silvery]

Yes, I have read the log, in the log it says the book recipe is invalid.
But in my friends game, it doesn't show any error.

[williewillus]

And the modpack is the exact same between you two with no edits?

[Alexis-Silvery]

And the modpack is the exact same between you two with no edits?

yes

[DDX5]

Have you checked the json for the entry it mentions which is vault_gear/tool_station page 2. Is the json valid and does the item exist as it is showing that there is an unknown item with the ID of the_vault:jewel

[DDX5]

I have taken a look through the logs and there are a few errors of interest.
The first one is "Invalid icon item stack: Unknown item ID: the_vault:tool_station"
The second is "Recipe the_vault:tool_station (of type minecraft:crafting) not found"
And the last being "Unknown item ID: the_vault:jewel"
Can you confirm that not only the items exist but the recipe also exists