Describe the bug
There is something wrong with one of the entries that makes the guidebook unusable after reloading the game. The log states the following error:

BookErrorManager.error() called for book: occultism:dictionary_of_spirits with error: BookErrorInfo{ 
errorMessage='Failed to load entry 'occultism:dictionary_of_spirits/entries/getting_started/theurgy_divination_rod'', 
context='Page Index: 0', 
exception='com.google.gson.JsonSyntaxException: Unknown item 'theurgy:divination_rod_t1''
}

I assume this is something related to a load condition with Theurgy, which fails to apply when reloading.

To Reproduce
Steps to reproduce the behavior:

1. Open the guidebook
2. Close it
3. Run /reload
4. Open the guidebook again
   There is now a missing entry

Expected behavior
Expected the book to still be usable

Screenshots

System (please complete the following information):

• Occultism Version: 1.117.0 (NeoForge)
• OS: Linux
• Minecraft Version: 1.20.1
• Modpack Link and Version, or list of mods: N/A, only Occultism with its dependencies

Just to clarify, theurgy is not installed, correct?
I ask because it is an occultism dependency, but optional ..

I have not installed it

Thanks! Managed to reproduce it and will look into it

@Noaaan if you update to modonomicon 1.60.1 (as soon as it is available, will be a few minutes / hours) it should work