fix waitress

app.py

@@ -177,21 +177,21 @@ def automated_backups():
         hosts = Host.query.all()
         now = datetime.now(timezone.utc)
         for host in hosts:
-            # Pobieramy ustawienia użytkownika
             settings = UserSettings.query.filter_by(user_id=host.user_id).first()
             backup_interval = settings.backup_interval if settings and settings.backup_interval else 60
 
-            # Pobieramy ostatni backup dla danego hosta
             last_backup = Backup.query.filter_by(user_id=host.user_id, host_id=host.id).order_by(Backup.created_at.desc()).first()
             if last_backup:
                 last_backup_time = last_backup.created_at
+                if last_backup_time.tzinfo is None:
+                    last_backup_time = last_backup_time.replace(tzinfo=timezone.utc)
             else:
                 last_backup_time = None
 
-            # Jeśli brak backupu lub minęło wystarczająco czasu, wykonujemy backup
             if (last_backup_time is None) or ((now - last_backup_time).total_seconds() >= backup_interval * 60):
                 automated_backup_for_host(host)
 
+
 def wrap_content_with_comments(content):
     now_str = datetime.now(timezone.utc).strftime("%Y-%m-%d %H:%M:%S UTC")
     header_comment = f"# Auto-hosts upload: {now_str}\n"
@@ -1127,7 +1127,7 @@ def scheduled_deployments():
                 deploy_user(setting.user_id)
                 setting.last_deploy_time = now
                 db.session.commit()
-                
+
 scheduler = BackgroundScheduler(timezone="UTC")
 scheduler.add_job(func=scheduled_deployments, trigger="interval", minutes=5, next_run_time=datetime.now())
 scheduler.add_job(func=automated_backups, trigger="interval", minutes=5, next_run_time=datetime.now())