Convert JSON output into CSV table in logic apps

Question

hello,
I'm trying to execute the below use case by using logic apps

1. I'd like to design logic app flow where it connects with Azure resource graph explorer and provide me the list of virtual machines details in CSV format
2. As part of that, I'm testing the CSV table flow where I see the error as shown below

My flow:

please let me know how what I need to use to convert JSON out into a CSV table, later I need to move this into the database