How to get more details on Api Call error :{"code":"internal_error","message":"We're sorry, but something went wrong."}

Hi everyone,
I’m trying to call the asset search API: /api/v2/asset?search, but I always get the following error:

{
  status: 500,
  headers: {
    date: 'Thu, 19 Sep 2024 10:39:06 GMT',
    'content-type': 'application/json',
    'transfer-encoding': 'chunked',
    connection: 'close',
    status: '500 Internal Server Error',
    'strict-transport-security': 'max-age=63072000; includeSubDomains',
    'x-freshservice-api-version': 'latest=v2; requested=v2',
    'x-request-id': 'c2ec60bc-b2ad-9247-b676-9811ff7fc2c1',
    'x-envoy-upstream-service-time': '88',
    'x-fw-ratelimiting-managed': 'true',
    'x-ratelimit-total': '500',
    'x-ratelimit-remaining': '499',
    'x-ratelimit-used-currentrequest': '1',
    'x-trace-id': '00-f21ae6cc40c312af7aa32367d8ac105b-bcdc85f0ca1248ba-01',
    nel: '{ "report_to": "nel-endpoint-freshservice", "max_age": 2592000, "include_subdomains": true}',
    'report-to': '{ "group": "nel-endpoint-freshservice", "max_age": 2592000, "include_subdomains": true, "endpoints": [{"url": "https://edge-admin.eu-central-1.freshedge.net/nelreports/freshservice"}]}',
    server: 'fwe'
  },
  response: `{"code":"internal_error","message":"We're sorry, but something went wrong."}`,
  attempts: 1,
  errorSource: 'APP'
}

Here’s my code. I’ve hardcoded values in requests.json to reduce potential errors:
server.js :

$request.invokeTemplate('viewAsset', {}).then(function (data) {
      console.log("viewAsset:",data);
    },
    function (error) {
    
      console.error("viewAsset",error);
    });

requests.json :

"viewAsset": {
    "schema": {
      "method": "GET",
      "host": "mydomainfreshservice.com",
      "path": "/api/v2/asset?search=name%3A%27TEST%27",
      "headers": {
        "Authorization": "Basic  <%= encode('hardcodedapikey') %>",
        "Content-Type": "application/json"
      }
    }
  }

Any ideas on what could be going wrong or here I can find details about the error?

Thanks
Geoffroy