Can't POST a list of domain to denylist

Hi,

I'm using PHP to post a list of domain to denylist however I'm getting an error :

Request failed with errors.
Error Code: required
Error Detail: `` must have required property 'id'.
Error Source: 
Error Code: extraneous
Error Detail: 
Error Source: /denylist
Domain: example.com
Response: {"errors":[{"code":"required","source":{"pointer":""},"detail":"`` must have required property 'id'."},{"code":"extraneous","source":{"pointer":"/denylist"}}]}
Error Code: required
Error Detail: `` must have required property 'id'.
Error Source: 
Error Code: extraneous
Error Detail: 
Error Source: 
Request failed with errors.
Error Code: required
Error Detail: `` must have required property 'id'.
Error Source: 
Error Code: extraneous
Error Detail: 
Error Source: /denylist
Domain: test.com
Response: {"errors":[{"code":"required","source":{"pointer":""},"detail":"`` must have required property 'id'."},{"code":"extraneous","source":{"pointer":"/denylist"}}]}
Error Code: required
Error Detail: `` must have required property 'id'.
Error Source: 
Error Code: extraneous
Error Detail: 
Error Source: 
Request failed with errors.
Error Code: required
Error Detail: `` must have required property 'id'.
Error Source: 
Error Code: extraneous
Error Detail: 
Error Source: /denylist
Domain: example.org
Response: {"errors":[{"code":"required","source":{"pointer":""},"detail":"`` must have required property 'id'."},{"code":"extraneous","source":{"pointer":"/denylist"}}]}
Error Code: required
Error Detail: `` must have required property 'id'.
Error Source: 
Error Code: extraneous
Error Detail: 
Error Source: 
3 Added to blacklist
Done, exiting app
 

Any idea please what I'm missing here?