Hello phuquanvn
Provided you have a valid subscription, you are fine to travel.
If you cannot present your travel card, the inspector can research it, and you will have to pay them CHF 5 for the additional effort. If you can’t pay on-site, you will receive a receipt to legitimate your travel card within 10 days at the counter or through the web portal made for that purpose. You will pay CHF 5 to the counter staff or via web as well.
Kind regards,
Roland