Welcome to the Make community!
In your HTTP module settings “Parse response” field, select “NO”
This will allow you to map the RAW response in subsequent modules.
If you select yes, then you can map individual variables.
Hope this helps! Let me know if there are any further questions or issues.
— @samliew
P.S.: Did you know, the concepts of about 70% of questions asked on this forum are already covered in the Make Academy. Investing some effort into it will save you lots of time and frustration using Make later!