Cannot use QSqlDataBase in QThread

void createDefaultDbConnection(const QJsonObject& settings) {
    auto hostName = settings.value("DB_host").toString();
    auto hostPort = settings.value("DB_port").toInt();
    auto databaseName = settings.value("DB_name").toString();
    auto userName = settings.value("DB_user").toString();
    auto password = settings.value("DB_pass").toString();
    
    auto db = QSqlDatabase::addDatabase("QPSQL");
    db.setHostName(hostName);
    db.setPort(hostPort);
    db.setDatabaseName(databaseName);
    db.setUserName(userName);
    db.setPassword(password);
    db.setConnectOptions("connect_timeout=3");    if (db.open()) {
        btInfo << QObject::tr("Соединение с базой данных установлено");
    }
    else {
        btError << QObject::tr("НЕ удалось установить соединение с базой данных, ошибка '%1'").arg(db.lastError().text());
    }
}

for (int i = 0; i < DbWorkersCount; ++i) {
 auto workerThread = new QThread(this);
 mDbWorkersThreads << workerThread;
 workerThread->start();
auto dbWorker = new BtDbWorker();
 dbWorker->moveToThread(workerThread);
 connect(workerThread, &QThread::finished, dbWorker, &QObject::deleteLater);
QObject::connect(dbWorker, &BtDbWorker::response, this, &BtServer::onDbResponse, Qt::QueuedConnection);
 QObject::connect(dbWorker, &BtDbWorker::signal, this, &BtServer::onDbSignal, Qt::QueuedConnection);
 QObject::connect(dbWorker, &BtDbWorker::addPreviewTask, mPreviewProcessor, &PreviewProcessor::addPreviewTask, Qt::QueuedConnection);
QMetaObject::invokeMethod(dbWorker,
 "start",
 Qt::QueuedConnection,
 Q_ARG(const QJsonObject&, settings.rootJsonObject()));
mFreeDbWorkers << dbWorker;
 }

void DbWorker::start(const QJsonObject& settings) {
  auto hostName = settings.value("DB_host").toString();
  auto hostPort = settings.value("DB_port").toInt();
  auto databaseName = settings.value("DB_name").toString();
  auto userName = settings.value("DB_user").toString();
  auto password = settings.value("DB_pass").toString();

  m_db = QSqlDatabase::addDatabase("QPSQL", QUuid::createUuid().toString());
  m_db.setHostName(hostName);
  m_db.setPort(hostPort);
  m_db.setDatabaseName(databaseName);
  m_db.setUserName(userName);
  m_db.setPassword(password);
  m_db.setConnectOptions("connect_timeout=3");
  m_db.open();
}

auto worker = mFreeDbWorkers.takeLast();
QMetaObject::invokeMethod(worker,
            "request",
            Qt::QueuedConnection,
            Q_ARG(BtRequest, req));

"QSqlDatabasePrivate::database: requested database does not belong to the calling thread."