Full Error Message:
Error while creating new document. Error message: Error: 404. Error description: Not Found

  • This error can happen when generating a document and you may not have the proper security or sharing settings on your google doc template or storage folder.

How to Resolve: 
You can modify the sharing settings of your google doc to be “public” instead of private or restricted and see if the error message is resolved. Also make sure this “public” access is reflected in the document action as well under “Properties of Google Drive.”