Is it legal for a restaurant to make a server pay when someone walks out on a bill?

I work at a locally owned and operated Japanese steak bourse and had a table walk out on a 90$ bill. The owner of said restaurant is trying to make me pay full price for their food since it was “my responsibility to make sure they paid”. Keep in mind this was a 12 top party that had checks split 11 different ways. The person who was supposed to pay for the two people walked out as I was getting payment for the last few people. Keep in mind I only make 2.15 an hour and all together today for a double shift I only made 100$
Is it legal for a restaurant to make a server pay when someone walks out on a bill?
Post Opinion