Hi Yuhang Li, to be honest it's quite hard to determine this. We suggest keeping an eye out for the fine letter to be certain. It usually takes 2 weeks for the letter of offence to reach you and if you have checked the fines or notices online but there isn't any, high chance you do not have any fines! To enquire fines, you may visit One Motoring website: https://vrl.lta.gov.sg/lta/vrl/action/pubfunc?ID=EnquireOffence