message: Fixed NPE in stop transaction
diff: @@ -1791,7 +1791,7 @@ export default class OCPPService {
  }, {
  'chargeBoxID': activeTransaction.chargeBoxID,
  'transactionId': activeTransaction.id,
  - 'meterStop': activeTransaction.lastEnergyActiveImportMeterValue.value,
  + 'meterStop': (activeTransaction.lastEnergyActiveImportMeterValue ? activeTransaction.lastEnergyActiveImportMeterValue.value : activeTransaction.meterStart),
  'timestamp': Utils.convertToDate(activeTransaction.lastEnergyActiveImportMeterValue.timestamp).toISOString(),
  }, false, true);
  // Check
  