Hello Our Umbraco community!

I am trying to make an Umbraco package. for that package I need all the ids, nodenames, cultures and domainnames of the root contents.

I tried the following

var umbracoHelper = new Umbraco.Web.UmbracoHelper(Umbraco.Web.UmbracoContext.Current);
var allContents = umbracoHelper.TypedContentAtRoot();

This however gives me the following exeption in the logs:

System.ArgumentNullException: Value cannot be null.
Parameter name: httpContext
at System.Web.HttpContextWrapper..ctor(HttpContext httpContext)
at h5ysr_package.DataCollectorSender.GetlinkedDomains()
at h5ysr_package.DataCollectorSender.  <StartCollection>d__2.MoveNext()

How would I solve this problem?