I should probably compile before committing in the future.

src/main/java/com/gmail/nossr50/config/experience/ExperienceConfig.java

@@ -103,10 +103,6 @@ public class ExperienceConfig extends AutoUpdateConfigLoader {
             reason.add("Experience.Combat.Multiplier.Animals should be at least 0!");
         }
 
-        if (getWitherSkeletonXP() < 0) {
-            reason.add("Experience.Combat.Multiplier.Wither_Skeleton should be at least 0!");
-        }
-
         if (getDodgeXPModifier() < 0) {
             reason.add("Skills.Acrobatics.Dodge_XP_Modifier should be at least 0!");
         }

src/main/java/com/gmail/nossr50/util/skills/CombatUtils.java

@@ -459,7 +459,7 @@ public final class CombatUtils {
                 baseXP = mcMMO.getModManager().getEntity(target).getXpMultiplier();
             }
             else if (target instanceof Animals) {
-                ntityType type = target.getType();
+                EntityType type = target.getType();
                 baseXP = ExperienceConfig.getInstance().getAnimalsXP(type);
             }
             else if (target instanceof Monster)