Possible fix for Vec3D error

src/main/java/net/citizensnpcs/npc/CitizensNPC.java

@@ -68,8 +68,8 @@ public class CitizensNPC extends AbstractNPC {
             data().remove("selectors");
         for (Trait trait : traits.values())
             trait.onDespawn();
-        entityController.remove();
         navigator.onDespawn();
+        entityController.remove();
         return true;
     }
 

src/main/java/net/citizensnpcs/npc/ai/CitizensNavigator.java

@@ -240,6 +240,5 @@ public class CitizensNavigator implements Navigator, Runnable {
     }
 
     private static final Location STATIONARY_LOCATION = new Location(null, 0, 0, 0);
-
     private static int UNINITIALISED_SPEED = Integer.MIN_VALUE;
 }

src/main/java/net/citizensnpcs/npc/entity/EntityHumanNPC.java

@@ -138,8 +138,9 @@ public class EntityHumanNPC extends EntityPlayer implements NPCHolder {
             // gravity. also works around an entity.onGround not updating issue
             // (onGround is normally updated by the client)
         }
-        if (!npc.data().get("removefromplayerlist", true))
+        if (!npc.data().get("removefromplayerlist", true)) {
             g();
+        }
         if (Math.abs(motX) < EPSILON && Math.abs(motY) < EPSILON && Math.abs(motZ) < EPSILON)
             motX = motY = motZ = 0;
 

src/main/java/net/citizensnpcs/npc/entity/MagmaCubeController.java

@@ -40,7 +40,6 @@ public class MagmaCubeController extends MobEntityController {
             if (npc != null) {
                 setSize(3);
                 NMS.clearGoals(goalSelector, targetSelector);
-
             }
         }