message: Ensure Transaction is on going
diff: @@ -2242,6 +2242,15 @@ export default class OCPPService {
  action: ServerAction.OCPP_METER_VALUES,
  detailedMessages: { headers, meterValues }
  });
  + // Transaction finished!
  + } else if (transaction.stop) {
  + throw new BackendError({
  + source: chargingStation.id,
  + module: MODULE_NAME, method: 'getTransactionFromMeterValues',
  + message: `${Utils.buildConnectorInfo(meterValues.connectorId, meterValues.transactionId)} Transaction is already stopped`,
  + action: ServerAction.OCPP_METER_VALUES,
  + detailedMessages: { headers, transaction, meterValues }
  + });
  }
  // Received Meter Values after the Transaction End Meter Value
  if (transaction.transactionEndReceived) {
  