Hello Saissooha75
On the receipt "Travel without a valid ticket’ that you have got, at the bottom part, there is a phone number for further inquiries mentioned. Call that number to rectify your address.
For travel without a valid ticket on SBB trains, the phone number is +41 848 00 11 33 (Mon-Fri). Alternatively, see an agent at a SBB Travel Center of your choice.
Kind regards,
Roland