Access invoice custom modules data from API

Access invoice custom modules data from API

Hi, I am using
  1.     $url = "https://www.zohoapis.eu/invoice/v3/invoices";
  2.     $opts = ["http" => [method" => "GET",header" => [
  3.                 "Authorization: Zoho-oauthtoken $accessToken",
  4.                 "X-com-zoho-invoice-organizationid: $orgId"  ] ] ];
From my app to retrieve the invoices, which work OK, but now I also need to retrieve cm_payment_registry custom module (this name works inside of deluge)

How can I access this from API?

All the following one just answer with 401 error:

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