---- Minecraft Crash Report ----
// Don't be sad. I'll do better next time, I promise!

Time: 2025-02-03 21:00:12
Description: Saving entity NBT

java.lang.NullPointerException: Cannot invoke "net.minecraft.util.Identifier.toString()" because "this.spellId" is null
at knot//net.spell_engine.entity.SpellProjectile.writeCustomDataToNbt(SpellProjectile.java:627)
at knot//MC//net.minecraft.entity.Entity.writeNbt(Entity.java:1826)
at knot//MC//net.minecraft.entity.Entity.saveSelfNbt(Entity.java:1762)
at knot//MC//net.minecraft.entity.Entity.saveNbt(Entity.java:1770)
at knot//MC//net.minecraft.world.storage.EntityChunkDataAccess.method_31734(EntityChunkDataAccess.java:108)
at [email protected]/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(Unknown Source)
at [email protected]/java.util.stream.ReferencePipeline$Head.forEach(Unknown Source)
at knot//MC//net.minecraft.world.storage.EntityChunkDataAccess.writeChunkData(EntityChunkDataAccess.java:106)
at knot//MC//net.minecraft.server.world.ServerEntityManager.trySave(ServerEntityManager.java:299)
at knot//MC//net.minecraft.server.world.ServerEntityManager.method_31846(ServerEntityManager.java:380)
at knot//it.unimi.dsi.fastutil.longs.LongOpenHashSet.forEach(LongOpenHashSet.java:756)
at knot//it.unimi.dsi.fastutil.longs.LongIterable.forEach(LongIterable.java:146)
at knot//it.unimi.dsi.fastutil.longs.AbstractLongCollection.forEach(AbstractLongCollection.java:149)
at knot//MC//net.minecraft.server.world.ServerEntityManager.save(ServerEntityManager.java:374)
at knot//MC//net.minecraft.server.world.ServerWorld.save(ServerWorld.java:794)
at knot//net.minecraft.server.MinecraftServer.save(MinecraftServer.java:536)
at knot//net.minecraft.server.MinecraftServer.saveAll(MinecraftServer.java:560)
at knot//net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:834)
at knot//net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:671)
at knot//net.minecraft.server.MinecraftServer.method_29739(MinecraftServer.java:265)
at [email protected]/java.lang.Thread.run(Unknown Source)

https://pastebin.com/tkmic3cQ