Knack x ChatPDF via Make.com

Has anyone successfully connected to ChatPDF via make.com?

I set up the scenario but continuously get an error with ChatPDF module.

I entered the following into the content field of the ChatPDF module to direct my knack new record (question) entry to ChatPDf.

{
“folderId”: “{{folder name}}”,
“question”: “{{question}}”
}

Questions:

  1. Not sure if this correct
  2. Error I get is “Service is temporarily unavailable.”

Currently using free version of ChatPDF.