Hi,
I have a flow that creates a document set. I'm following guides online since I don't know what I'm doing. My test flow worked on Wednesday, but does not work today (bad gateway error). I have tried creating a new (simplified) flow for testing. This is what I'm working with:

I managed to create this document set via flow on Wednesday (by testing the flow), so it was working initially.

How can I get it to work again?