I am currently rolling out a CAWI survey using an istallation of Survey Solutions on AWS and I was able to see all the interviews in the ‘interviews’ tab until yesterday. Since yesterday evening no interviews appear anymore and instead I get an error message ‘Network error: Response not successful: Received status code 400’. Do you have any idea what might be going on?
The server status is shown as healthy. I was worried at first that the data might be lost, but I am able to export the data without a problem.