Describe your problem
Hi! I'm running a hybrid 1.20.1 server and i have a conflict between Occultism and a plugin named(mcMMO)mcMMO
,when i run it with the mod, mcMMO stops working, but the server loads up just fine, the error happenes
during mcMMO's recipe conversion(Shapeless recipes cannot have more than 9 ingredients).
Here is the part of the log that mentions the problem:

[19dec.2023 21:59:00.709] [Server thread/ERROR] [mcMMO/]: There was an error while enabling mcMMO!
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: java.lang.RuntimeException: Error converting recipe occultism:ritual/possess_elder_guardian
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at TRANSFORMER/[email protected]/org.bukkit.craftbukkit.v1_20_R1.inventory.RecipeIterator.next(RecipeIteratorMixin.java:554)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at TRANSFORMER/[email protected]/org.bukkit.craftbukkit.v1_20_R1.inventory.RecipeIterator.next(RecipeIteratorMixin.java:1)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at com.gmail.nossr50.util.skills.SkillUtils.getRepairAndSalvageQuantities(SkillUtils.java:329)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at com.gmail.nossr50.config.skills.salvage.SalvageConfig.loadKeys(SalvageConfig.java:146)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at com.gmail.nossr50.config.skills.salvage.SalvageConfig.(SalvageConfig.java:28)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at com.gmail.nossr50.config.skills.salvage.SalvageConfigManager.(SalvageConfigManager.java:20)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at com.gmail.nossr50.mcMMO.loadConfigFiles(mcMMO.java:593)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at com.gmail.nossr50.mcMMO.onEnable(mcMMO.java:208)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at TRANSFORMER/[email protected]/org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPluginMixin.java:266)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at TRANSFORMER/[email protected]/org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoaderMixin.java:342)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at TRANSFORMER/[email protected]/org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:480)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at TRANSFORMER/[email protected]/org.bukkit.craftbukkit.v1_20_R1.CraftServer.enablePlugin(CraftServerMixin.java:546)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at TRANSFORMER/[email protected]/org.bukkit.craftbukkit.v1_20_R1.CraftServer.enablePlugins(CraftServerMixin.java:460)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at TRANSFORMER/[email protected]/net.minecraft.server.MinecraftServer.handler$cno000$arclight$enablePlugins(MinecraftServerMixin.java:2137)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at TRANSFORMER/[email protected]/net.minecraft.server.MinecraftServer.m_129815_(MinecraftServerMixin.java:385)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at TRANSFORMER/[email protected]/net.minecraft.server.MinecraftServer.m_130006_(MinecraftServerMixin.java:308)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at TRANSFORMER/[email protected]/net.minecraft.server.dedicated.DedicatedServer.m_7038_(DedicatedServerMixin.java:162)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at TRANSFORMER/[email protected]/net.minecraft.server.MinecraftServer.m_130011_(MinecraftServerMixin.java:2028)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at TRANSFORMER/[email protected]/net.minecraft.server.MinecraftServer.m_206580_(MinecraftServerMixin.java:251)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at java.base/java.lang.Thread.run(Thread.java:833)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: Caused by: java.lang.IllegalArgumentException: Shapeless recipes cannot have more than 9 ingredients
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at MC-BOOTSTRAP/[email protected]/com.google.common.base.Preconditions.checkArgument(Preconditions.java:145)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at TRANSFORMER/[email protected]/org.bukkit.inventory.ShapelessRecipe.addIngredient(ShapelessRecipe.java:130)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at TRANSFORMER/[email protected]/net.minecraft.world.item.crafting.ShapelessRecipe.bridge$toBukkitRecipe(ShapelessRecipeMixin.java:538)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: at TRANSFORMER/[email protected]/org.bukkit.craftbukkit.v1_20_R1.inventory.RecipeIterator.next(RecipeIteratorMixin.java:552)
[19dec.2023 21:59:00.709] [Server thread/ERROR] [STDERR/]: ... 19 more
[19dec.2023 21:59:00.709] [Server thread/INFO] [mcMMO/]: Disabling mcMMO v2.1.224
[19dec.2023 21:59:00.709] [Server thread/INFO] [mcMMO/]: Server shutdown has been executed, saving and cleaning up data...
[19dec.2023 21:59:00.712] [Server thread/INFO] [mcMMO/]: [D] Completing 0 unfinished Alchemy brews.
[19dec.2023 21:59:00.717] [Server thread/INFO] [mcMMO/]: [D] [Party Data] Saving...

System (please complete the following information):

• Minecraft Version 1.20.1
• Modpack Link and Version, or list of mods Forge 47.1.1
• Specific mods that you experience compatiblity issues with: A plugin called mcMMO

Hmm it seems mcMMO checks for the recipe java class "ShapelessRecipe", instead of the RecipeType that datapacks use.
That is, as far as I know, not a good pattern, and causes this, because occultism's rituals inherit from shapeless recipes to use some of the existing code.

I can avoid that on my end, but for a stable solution mcMMO should switch their check to use recipetype, if possible (or check if it is a subclass of shapeless recipe and then skip it)

Closed in 058807d but the above message still stands, mcMMO likely needs to adjust their code