I'm getting the above error when I try and query a custom table and that table has a key not called ID. The field was called EventID and I got the error, I've traced loads of different scenarios and only if the field is called ID does it work. If tried using HasKey and the two primary key attributes. The all return 500s, calling it ID works with a 200 response. It's obviously something I'm doing but I'm stumped as to what that is given the error message. Anyone any ideas?