Book flag needs to be enabled?

[NateKDavis]

Not 100% sure if this is info you need or you can fix this, but here is the error that seems to mention how to fix it: [Worker-Main-1/ERROR]: Failed to load book arseng:worn_notebook defined by mod arseng, skipping java.lang.IllegalArgumentException: Book arseng:worn_notebook has use_resource_pack set to false. This behaviour was removed in 1.20. The book author should enable this flag and move all book contents clientside to /assets/, leaving the book.json in /data/. See https://vazkiimods.github.io/Patchouli/docs/upgrading/upgrade-guide-120 for details. at vazkii.patchouli.common.book.Book.(Book.java:145) ~[Patchouli-1.20.1-81-FORGE.jar%23511!/:1.20.1-81-FORGE] at vazkii.patchouli.common.book.BookRegistry.loadBook(BookRegistry.java:90) ~[Patchouli-1.20.1-81-FORGE.jar%23511!/:1.20.1-81-FORGE] at vazkii.patchouli.common.book.BookRegistry.lambda$init$3(BookRegistry.java:75) ~[Patchouli-1.20.1-81-FORGE.jar%23511!/:1.20.1-81-FORGE] at java.util.HashMap.forEach(HashMap.java:1421) ~[?:?] at vazkii.patchouli.common.book.BookRegistry.init(BookRegistry.java:70) ~[Patchouli-1.20.1-81-FORGE.jar%23511!/:1.20.1-81-FORGE] at vazkii.patchouli.forge.common.ForgeModInitializer.onInitialize(ForgeModInitializer.java:76) ~[Patchouli-1.20.1-81-FORGE.jar%23511!/:1.20.1-81-FORGE] at vazkii.patchouli.forge.common.__ForgeModInitializer_onInitialize_FMLCommonSetupEvent.invoke(.dynamic) ~[Patchouli-1.20.1-81-FORGE.jar%23511!/:1.20.1-81-FORGE] at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:73) ~[eventbus-6.0.5.jar%2387!/:?] at net.minecraftforge.eventbus.EventBus.post(EventBus.java:315) ~[eventbus-6.0.5.jar%2387!/:?] at net.minecraftforge.eventbus.EventBus.post(EventBus.java:296) ~[eventbus-6.0.5.jar%2387!/:?] at net.minecraftforge.fml.javafmlmod.FMLModContainer.acceptEvent(FMLModContainer.java:114) ~[javafmllanguage-1.20.1-47.2.5.jar%23578!/:?] at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$10(ModContainer.java:124) ~[fmlcore-1.20.1-47.2.5.jar%23577!/:?] at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1804) ~[?:?] at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1796) ~[?:?] at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373) ~[?:?] at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182) ~[?:?] at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655) ~[?:?] at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622) ~[?:?] at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165) ~[?:?]

[62832]

My bad, it seems I missed this one completely. I'll try to sort it out for another release.