No HTTP resource was found that matches the request URI

Hi, i try to add a new web api to my .net application and place it on Azure (where all my APIs are).

the new API is getNumbers:

    public class GetNumbersController : ApiController
    {
        
        [HttpGet]
        public List<string> GetNumbers(string planeType)
        {
            ...
        }
    }

For some reason i can't access it. when i type the url [server]/getNumbers i receive:

<Error>
<Message>
No HTTP resource was found that matches the request URI 'http://aeronexus-we.azurewebsites.net/GetTailNumbers'.
</Message>
</Error>

Of course that all my other APIs build the same and are accessible

I even can't see my new API under [server]/help (where i can see all the others)

If it helps to understand, localy i can access my new API

 The routes is:

            config.Routes.MapHttpRoute(
                name: "ActionApi",
                routeTemplate: "{controller}/{action}/{id}",
                defaults: new {id = RouteParameter.Optional});

Thanks in advanced.