diff --git a/src/main/java/vip/fubuki/playersync/PlayerSync.java b/src/main/java/vip/fubuki/playersync/PlayerSync.java
index 8a1ee74..fa3dc65 100644
--- a/src/main/java/vip/fubuki/playersync/PlayerSync.java
+++ b/src/main/java/vip/fubuki/playersync/PlayerSync.java
@@ -129,30 +129,30 @@ public class PlayerSync {
         }
 
         // Create backpack_data table
-        if(ModList.get().isLoaded("sophisticatedbackpacks")){
+        if (ModList.get().isLoaded("sophisticatedbackpacks")) {
             JDBCsetUp.executeUpdate(
                     "CREATE TABLE IF NOT EXISTS " + dbName + ".backpack_data (" +
                             "uuid CHAR(36) NOT NULL, backpack_nbt MEDIUMBLOB, PRIMARY KEY (uuid)" +
                             ");", 1
             );
-        }
 
-        // ----- NEW BLOCK: Schema Update for backpack_data and player_data -----
-        // Check if backpack_data table has the 'uuid' column
-        JDBCsetUp.QueryResult backpackColCheck = JDBCsetUp.executeQuery(
-                "SELECT COUNT(*) AS colCount FROM INFORMATION_SCHEMA.COLUMNS " +
-                        "WHERE TABLE_SCHEMA = '" + dbName + "' " +
-                        "AND TABLE_NAME = 'backpack_data' " +
-                        "AND COLUMN_NAME = 'uuid';"
-        );
-        ResultSet rsBackpackCol = backpackColCheck.resultSet();
-        if (rsBackpackCol.next() && rsBackpackCol.getInt("colCount") == 0) {
-            LOGGER.info("Altering backpack_data table to add missing 'uuid' column.");
-            // Add the missing column and set it as primary key.
-            JDBCsetUp.executeUpdate("ALTER TABLE " + dbName + ".backpack_data ADD COLUMN uuid CHAR(36) NOT NULL", 1);
-            JDBCsetUp.executeUpdate("ALTER TABLE " + dbName + ".backpack_data ADD PRIMARY KEY (uuid)", 1);
+            // Check if backpack_data table has the 'uuid' column
+            JDBCsetUp.QueryResult backpackColCheck = JDBCsetUp.executeQuery(
+                    "SELECT COUNT(*) AS colCount FROM INFORMATION_SCHEMA.COLUMNS " +
+                            "WHERE TABLE_SCHEMA = '" + dbName + "' " +
+                            "AND TABLE_NAME = 'backpack_data' " +
+                            "AND COLUMN_NAME = 'uuid';"
+            );
+            ResultSet rsBackpackCol = backpackColCheck.resultSet();
+            if (rsBackpackCol.next() && rsBackpackCol.getInt("colCount") == 0) {
+                LOGGER.info("Altering backpack_data table to add missing 'uuid' column.");
+                // Add the missing column and set it as primary key.
+                JDBCsetUp.executeUpdate("ALTER TABLE " + dbName + ".backpack_data ADD COLUMN uuid CHAR(36) NOT NULL", 1);
+                JDBCsetUp.executeUpdate("ALTER TABLE " + dbName + ".backpack_data ADD PRIMARY KEY (uuid)", 1);
+            }
+            rsBackpackCol.close();
+            backpackColCheck.connection().close();
         }
-        rsBackpackCol.close();
 
         // Check and alter the 'advancements' column in player_data if necessary
         JDBCsetUp.QueryResult advColCheck = JDBCsetUp.executeQuery(