Swagger file generation in IICS failed

In Informatica Cloud Administrator, I’m attempting to create a Swagger file. I’m receiving the following error:

I’m unsure of what I’m doing incorrectly. The endpoint information, headers, answer, etc., are all accurate. Yesterday, I was able to generate a file of a comparable nature, but not today.

Not sure this is the right forum for your issue - perhaps you mean Informatica for use with DynamoDB? Informatica Network