AI Agent REST Call Error

Summary:

NULL Response for REST call in AI Agents

Content (please ensure you mask any confidential information):

I've created a Custom Business Object which is a REST call to get Contact Details based on a query field RawPhoneNumber

Resource Path: /crmRestApi/resources/11.13.18.05/contacts?q=RawPhoneNumber='{number}'

Under Paraments and Business Object Fields: number field is added with data type as string and Is Parameter flag is set to true.

When I debug the AI Agent, I didn't get any output for this REST call.

Error Message: Sorry, the assistant is unavailable right now. If the issue persists, contact your help desk.