diff --git a/L2J_Mobius_C6_Interlude/dist/libs/mariadb-java-client-2.3.0.jar b/L2J_Mobius_C6_Interlude/dist/libs/mariadb-java-client-2.3.0.jar
new file mode 100644
index 0000000000..cbfa673976
Binary files /dev/null and b/L2J_Mobius_C6_Interlude/dist/libs/mariadb-java-client-2.3.0.jar differ
diff --git a/L2J_Mobius_C6_Interlude/dist/libs/mysql-connector-java-5.1.46.jar b/L2J_Mobius_C6_Interlude/dist/libs/mysql-connector-java-5.1.46.jar
deleted file mode 100644
index 6d26d72246..0000000000
Binary files a/L2J_Mobius_C6_Interlude/dist/libs/mysql-connector-java-5.1.46.jar and /dev/null differ
diff --git a/L2J_Mobius_C6_Interlude/java/com/l2jmobius/gameserver/model/L2Clan.java b/L2J_Mobius_C6_Interlude/java/com/l2jmobius/gameserver/model/L2Clan.java
index 35df84a3f8..e1dfa3a6eb 100644
--- a/L2J_Mobius_C6_Interlude/java/com/l2jmobius/gameserver/model/L2Clan.java
+++ b/L2J_Mobius_C6_Interlude/java/com/l2jmobius/gameserver/model/L2Clan.java
@@ -53,7 +53,6 @@ import com.l2jmobius.gameserver.network.serverpackets.PledgeSkillListAdd;
 import com.l2jmobius.gameserver.network.serverpackets.StatusUpdate;
 import com.l2jmobius.gameserver.network.serverpackets.SystemMessage;
 import com.l2jmobius.gameserver.network.serverpackets.UserInfo;
-import com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException;
 
 /**
  * This class ...
@@ -1139,7 +1138,7 @@ public class L2Clan
 						statement.execute();
 						statement.close();
 					}
-					catch (MySQLIntegrityConstraintViolationException e) // update to avoid miss information
+					catch (Exception e) // update to avoid miss information
 					{
 						statement = con.prepareStatement("UPDATE clan_skills SET skill_level=? WHERE skill_id=? AND clan_id=?");
 						statement.setInt(1, newSkill.getLevel());
diff --git a/L2J_Mobius_C6_Interlude/java/com/l2jmobius/gameserver/model/actor/instance/L2ItemInstance.java b/L2J_Mobius_C6_Interlude/java/com/l2jmobius/gameserver/model/actor/instance/L2ItemInstance.java
index f7e9ca3b1d..955503fe72 100644
--- a/L2J_Mobius_C6_Interlude/java/com/l2jmobius/gameserver/model/actor/instance/L2ItemInstance.java
+++ b/L2J_Mobius_C6_Interlude/java/com/l2jmobius/gameserver/model/actor/instance/L2ItemInstance.java
@@ -19,7 +19,6 @@ package com.l2jmobius.gameserver.model.actor.instance;
 import java.sql.Connection;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
-import java.sql.SQLException;
 import java.util.concurrent.ScheduledFuture;
 import java.util.logging.Level;
 import java.util.logging.LogRecord;
@@ -52,7 +51,6 @@ import com.l2jmobius.gameserver.templates.item.L2Item;
 import com.l2jmobius.gameserver.templates.item.L2Weapon;
 import com.l2jmobius.gameserver.util.IllegalPlayerAction;
 import com.l2jmobius.gameserver.util.Util;
-import com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException;
 
 /**
  * This class manages items.
@@ -1434,7 +1432,7 @@ public final class L2ItemInstance extends L2Object
 			_storedInDb = true;
 			statement.close();
 		}
-		catch (MySQLIntegrityConstraintViolationException e)
+		catch (Exception e)
 		{
 			if (Config.DEBUG)
 			{
@@ -1442,10 +1440,6 @@ public final class L2ItemInstance extends L2Object
 			}
 			updateInDb();
 		}
-		catch (SQLException e)
-		{
-			e.printStackTrace();
-		}
 	}
 	
 	/**
diff --git a/L2J_Mobius_C6_Interlude/java/com/l2jmobius/gameserver/model/quest/Quest.java b/L2J_Mobius_C6_Interlude/java/com/l2jmobius/gameserver/model/quest/Quest.java
index e925f1e253..b9507a92b2 100644
--- a/L2J_Mobius_C6_Interlude/java/com/l2jmobius/gameserver/model/quest/Quest.java
+++ b/L2J_Mobius_C6_Interlude/java/com/l2jmobius/gameserver/model/quest/Quest.java
@@ -54,7 +54,6 @@ import com.l2jmobius.gameserver.network.serverpackets.SystemMessage;
 import com.l2jmobius.gameserver.scripting.ManagedScript;
 import com.l2jmobius.gameserver.scripting.ScriptManager;
 import com.l2jmobius.gameserver.templates.chars.L2NpcTemplate;
-import com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException;
 
 /**
  * @author Luis Arias
@@ -1362,13 +1361,9 @@ public class Quest extends ManagedScript
 			statement.executeUpdate();
 			statement.close();
 		}
-		catch (MySQLIntegrityConstraintViolationException e)
-		{
-			updateQuestVarInDb(qs, var, value);
-		}
 		catch (Exception e)
 		{
-			LOGGER.warning("could not insert char quest: " + e);
+			updateQuestVarInDb(qs, var, value);
 		}
 	}