Search Doctor Sandbox API not working

This API endpoint: https://doctorsbx.abdm.gov.in/apis/v1/doctors/search-doctors is not working. I followed the documentation and sent the below payload along with Authorization, but getting “401 Unauthorized”

@IntegrationSupport Please assist here.

curl --location ‘https://doctorsbx.abdm.gov.in/apis/v1/doctors/search-doctors
–header ‘Authorization: Bearer <<“access-token”>>’
–header ‘Content-Type: application/json’
–data ‘{
“practitioner”: {
“id”: “”,
“name”: “Aksha”,
“contactNumber”: “”,
“state”: “”,
“registrationNumber”: “”
}
}’

@IntegrationSupport Please assist here