message: fix(origin-ui-core): using null as certificate creation date
diff: @@ -16,6 +16,7 @@ import { useOriginConfiguration } from '../../../utils/configuration';
  import { DeviceDTO } from '@energyweb/origin-device-registry-irec-form-api-client';
  import { fromGeneralSelectors } from '../../../features';
  import { ClaimDataDTO } from '@energyweb/issuer-api-client';
  +import moment from 'moment';
  interface IProps {
  id: number;
  @@ -146,7 +147,7 @@ export function CertificateDetailView(props: IProps) {
  requestor: transformAddress(request.owner),
  amount: EnergyFormatter.format(request.energy, true)
  }),
  - timestamp: request.created
  + timestamp: moment((request as any).createdAt).unix()
  });
  }
  