diff --git a/SHiNE-server/shine-server-db/src/main/java/shine/db/DbController.java b/SHiNE-server/shine-server-db/src/main/java/shine/db/DbController.java
index 72dec60c..96e1c6dd 100644
--- a/SHiNE-server/shine-server-db/src/main/java/shine/db/DbController.java
+++ b/SHiNE-server/shine-server-db/src/main/java/shine/db/DbController.java
@@ -1,6 +1,7 @@
 package shine.db;
 
 import shine.db.connection.DbProvider;
+import shine.db.dao.DmDialogStateDAO;
 
 import java.sql.Connection;
 import java.sql.SQLException;
@@ -15,6 +16,7 @@ public final class DbController implements DbProvider {
     private static volatile DbController instance;
 
     private final PostgresDbController delegate;
+    private volatile boolean dmDialogStateBootstrapped;
 
     private DbController() {
         this.delegate = PostgresDbController.getInstance();
@@ -24,7 +26,9 @@ public final class DbController implements DbProvider {
         if (instance == null) {
             synchronized (DbController.class) {
                 if (instance == null) {
-                    instance = new DbController();
+                    DbController created = new DbController();
+                    instance = created;
+                    created.bootstrapDmDialogStateIfNeeded();
                 }
             }
         }
@@ -40,4 +44,18 @@ public final class DbController implements DbProvider {
     public void close() {
         delegate.close();
     }
+
+    private void bootstrapDmDialogStateIfNeeded() {
+        if (dmDialogStateBootstrapped) return;
+        synchronized (this) {
+            if (dmDialogStateBootstrapped) return;
+            try (Connection connection = delegate.getConnection()) {
+                DmDialogStateDAO.getInstance().bootstrapIfEmpty(connection);
+                dmDialogStateBootstrapped = true;
+            } catch (SQLException e) {
+                instance = null;
+                throw new RuntimeException("DM dialog state bootstrap failed", e);
+            }
+        }
+    }
 }
diff --git a/SHiNE-server/shine-server-db/src/main/java/shine/db/PostgresDbController.java b/SHiNE-server/shine-server-db/src/main/java/shine/db/PostgresDbController.java
index 680af9ad..a3b77fcc 100644
--- a/SHiNE-server/shine-server-db/src/main/java/shine/db/PostgresDbController.java
+++ b/SHiNE-server/shine-server-db/src/main/java/shine/db/PostgresDbController.java
@@ -1,7 +1,6 @@
 package shine.db;
 
 import shine.db.connection.DriverManagerDbProvider;
-import shine.db.dao.DmDialogStateDAO;
 import utils.config.AppConfig;
 
 import java.sql.Connection;
@@ -35,12 +34,6 @@ public final class PostgresDbController {
         this.delegate = new DriverManagerDbProvider(jdbcUrl, dbUser, dbPassword, connection -> {
             connection.setAutoCommit(true);
         });
-
-        try (Connection connection = this.delegate.getConnection()) {
-            DmDialogStateDAO.getInstance().bootstrapIfEmpty(connection);
-        } catch (SQLException e) {
-            throw new RuntimeException("DM dialog state bootstrap failed", e);
-        }
     }
 
     public static PostgresDbController getInstance() {