diff --git a/app/main.py b/app/main.py
index 4096926..3181775 100644
--- a/app/main.py
+++ b/app/main.py
@@ -49,7 +49,7 @@ class DiskReorganizer:
         """
         if db_config is None:
             db_config = {
-                'host': os.getenv('DB_HOST', 'localhost'),
+                'host': os.getenv('DB_HOST', '192.168.1.159'),
                 'port': int(os.getenv('DB_PORT', 5432)),
                 'database': os.getenv('DB_NAME', 'disk_reorganizer_db'),
                 'user': os.getenv('DB_USER', 'disk_reorg_user'),
@@ -120,7 +120,7 @@ class DiskReorganizer:
 
                         stat = file_path.stat()
                         size = stat.st_size
-                        mtime = stat.st_mtime
+                        mtime = datetime.fromtimestamp(stat.st_mtime)
 
                         # Calculate relative path for portability
                         rel_path = str(file_path.relative_to(disk_path))
@@ -156,6 +156,7 @@ class DiskReorganizer:
                             conn.commit()
 
                     except Exception as e:
+                        conn.rollback()
                         logger.warning(f"\nSkipping {file_path}: {e}")
                         continue
 
@@ -182,8 +183,8 @@ class DiskReorganizer:
             usage = {}
             for row in cursor.fetchall():
                 disk = row[0]
-                size = row[1] or 0
-                count = row[2]
+                size = int(row[1] or 0)
+                count = int(row[2])
                 usage[disk] = {
                     'size': size,
                     'count': count,
@@ -266,7 +267,7 @@ class DiskReorganizer:
                     'source_path': rel_path,
                     'dest_disk': dest_disk,
                     'target_path': rel_path,  # Keep same relative path
-                    'size': size
+                    'size': int(size)
                 }
                 plan['operations'].append(op)
 
diff --git a/sql/setup_database.sql b/sql/setup_database.sql
index 8eee7b5..0745998 100644
--- a/sql/setup_database.sql
+++ b/sql/setup_database.sql
@@ -54,9 +54,15 @@ CREATE INDEX IF NOT EXISTS idx_operations_source ON operations(source_path);
 -- Grant privileges to disk_reorg_user
 GRANT CONNECT ON DATABASE disk_reorganizer_db TO disk_reorg_user;
 GRANT USAGE ON SCHEMA public TO disk_reorg_user;
-GRANT SELECT, INSERT, UPDATE, DELETE ON TABLE files TO disk_reorg_user;
-GRANT SELECT, INSERT, UPDATE, DELETE ON TABLE operations TO disk_reorg_user;
-GRANT USAGE, SELECT ON SEQUENCE operations_id_seq TO disk_reorg_user;
+GRANT ALL PRIVILEGES ON ALL TABLES    IN SCHEMA public TO disk_reorg_user;
+GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA public TO disk_reorg_user;
+
+-- future tables/sequences created by your owner role (pick the role that creates them)
+ALTER DEFAULT PRIVILEGES FOR ROLE auction IN SCHEMA public
+  GRANT ALL PRIVILEGES ON TABLES TO disk_reorg_user;
+
+ALTER DEFAULT PRIVILEGES FOR ROLE auction IN SCHEMA public
+  GRANT ALL PRIVILEGES ON SEQUENCES TO disk_reorg_user;
 
 -- Create function to update updated_at timestamp
 CREATE OR REPLACE FUNCTION update_updated_at_column()