Hi!

I have a web api in my EPiServer application which previously worked fine. But suddenly I can't get it to run in IIS. Localhost works fine. It seems the web api is found, but the routing is wrong. I get this error message in postman when I run (...)/api/epi/helptexts:

{
"Message": "No HTTP resource was found that matches the request URI '(...)/api/epi/helptexts'.",
"MessageDetail": "No type was found that matches the controller named 'helptexts'."
}

This is the controller:

[RoutePrefix("api/epi")]
public class ContentController : ApiController
{
[HttpGet]
[Route("helptexts")]
[AllowAnonymous]
public HttpResponseMessage GetHelptextsNorwegian()

This is the webApiConfig.cs:

[InitializableModule]
  [ModuleDependency(typeof(FrameworkInitialization))]
  public class WebApiConfig : IInitializableModule
  {

 public void Initialize(InitializationEngine context)
    {
      GlobalConfiguration.Configure(config =>
      {
        config.MapHttpAttributeRoutes();
        config.EnableCors();

        var formatters = GlobalConfiguration.Configuration.Formatters;
        var jsonFormatter = formatters.JsonFormatter;
        var settings = jsonFormatter.SerializerSettings;

        var enumConverter = new Newtonsoft.Json.Converters.StringEnumConverter();
        jsonFormatter.SerializerSettings.Converters.Add(enumConverter);

        settings.Formatting = Formatting.Indented;

        config.Formatters.Remove(config.Formatters.XmlFormatter);

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

This configuration works fine in another site. Can anyone point me in the right direction?