diff --git a/src/main/java/net/Indyuce/mmocore/api/player/profess/PlayerClass.java b/src/main/java/net/Indyuce/mmocore/api/player/profess/PlayerClass.java
index f5218d36..44f9b005 100644
--- a/src/main/java/net/Indyuce/mmocore/api/player/profess/PlayerClass.java
+++ b/src/main/java/net/Indyuce/mmocore/api/player/profess/PlayerClass.java
@@ -260,7 +260,11 @@ public class PlayerClass extends PostLoadObject {
 	}
 
 	public boolean hasSkill(Skill skill) {
-		return skills.containsKey(skill.getId());
+		return hasSkill(skill.getId());
+	}
+
+	public boolean hasSkill(String id) {
+		return skills.containsKey(id);
 	}
 
 	public SkillInfo getSkill(Skill skill) {
diff --git a/src/main/java/net/Indyuce/mmocore/manager/data/mysql/MySQLPlayerDataManager.java b/src/main/java/net/Indyuce/mmocore/manager/data/mysql/MySQLPlayerDataManager.java
index e48933c2..3b33783d 100644
--- a/src/main/java/net/Indyuce/mmocore/manager/data/mysql/MySQLPlayerDataManager.java
+++ b/src/main/java/net/Indyuce/mmocore/manager/data/mysql/MySQLPlayerDataManager.java
@@ -80,7 +80,7 @@ public class MySQLPlayerDataManager extends PlayerDataManager {
 			}
 			if (!isEmpty(result.getString("bound_skills")))
 				for (String skill : getJSONArray(result.getString("bound_skills")))
-					if (MMOCore.plugin.skillManager.has(skill))
+					if (data.getProfess().hasSkill(skill))
 						data.getBoundSkills().add(data.getProfess().getSkill(skill));
 			if (!isEmpty(result.getString("class_info"))) {
 				JsonObject object = parser.fromJson(result.getString("class_info"), JsonObject.class);
diff --git a/src/main/java/net/Indyuce/mmocore/manager/data/yaml/YAMLPlayerDataManager.java b/src/main/java/net/Indyuce/mmocore/manager/data/yaml/YAMLPlayerDataManager.java
index 99f866c9..d0ae7292 100644
--- a/src/main/java/net/Indyuce/mmocore/manager/data/yaml/YAMLPlayerDataManager.java
+++ b/src/main/java/net/Indyuce/mmocore/manager/data/yaml/YAMLPlayerDataManager.java
@@ -53,7 +53,7 @@ public class YAMLPlayerDataManager extends PlayerDataManager {
 			config.getConfigurationSection("skill").getKeys(false).forEach(id -> data.setSkillLevel(id, config.getInt("skill." + id)));
 		if (config.contains("bound-skills"))
 			for (String id : config.getStringList("bound-skills"))
-				if (MMOCore.plugin.skillManager.has(id))
+				if (data.getProfess().hasSkill(id))
 					data.getBoundSkills().add(data.getProfess().getSkill(id));
 
 		/*
@@ -116,7 +116,8 @@ public class YAMLPlayerDataManager extends PlayerDataManager {
 			config.set("class-info." + key + ".attribute-points", info.getAttributePoints());
 			config.set("class-info." + key + ".attribute-realloc-points", info.getAttributeReallocationPoints());
 			info.getSkillKeys().forEach(skill -> config.set("class-info." + key + ".skill." + skill, info.getSkillLevel(skill)));
-			info.getAttributeKeys().forEach(attribute -> config.set("class-info." + key + ".attribute." + attribute, info.getAttributeLevel(attribute)));
+			info.getAttributeKeys()
+					.forEach(attribute -> config.set("class-info." + key + ".attribute." + attribute, info.getAttributeLevel(attribute)));
 		}
 
 		file.save();