From the comments that are listed,it seems that no one knows for sure whats this fine for?If you ask for proof at the traffic department,they say they don't have any proof and if you don't pay the fine,they will not renew your road permit.So everyone be careful otherwise you will be surprised when you go to renew the road permit.If anyone knows for sure what this fine means then let others know,so they can be more careful.

Have a nice weekend.