I haven't watched this particular video, but I've read her 46 page suit. That's not the case that was lost. The case(s) that were lost are small claims actions made by the YouTuber and 9 of his friends, essentially. They got default judgments from the court on 10 claims each worth $10k. The previous owner's suit was just filed in March of this year, I believe.

Now as for the previous question of who was at the pointy end of those default judgments, I haven't been able to find that answer. I assume they should have named the local franchise as an entity and it's owners individually. Closing the store to avoid paying is arguably a fraudulent transfer of assets, but that would need to be taken to court in an enforcement action.