Issue with Zendesk API Integration for Ticket Creation

I'm experiencing an issue with my website's integration with the Zendesk API, specifically when creating tickets. Despite the API request being correctly formatted and including all required parameters, I'm consistently receiving an error response.

Error Message: "Error creating ticket: [ZD-1234: Unable to create ticket. Invalid requester information provided]."

Steps to Reproduce:

1. Make a POST request to the Zendesk API endpoint for ticket creation.
2. Include all required parameters such as subject, description, requester information, etc.
3. Receive the error response mentioned above.

Expected Behavior: The Zendesk API should create a ticket successfully and return a valid ticket ID. However, the current behavior is preventing the successful creation of tickets.

I would appreciate any insights or assistance to identify and resolve this issue. If specific logs or additional details are needed, please let me know, and I'll provide them promptly.

Thank you for your help!