Error with iso2

handlers/handlers.go

@@ -69,7 +69,7 @@ func ReadershipHandler(w http.ResponseWriter, r *http.Request) {
     var readershipDetails []models.ReadershipDetail
     var totalReadership int64 = 0
     for _, country := range countries { // Directly range over countries
-        population, err := services.FetchPopulationByCountryCode(country.ISOCode)
+        population, err := services.FetchPopulationByCountryCode(country.ISO3166_1_Alpha_2)
         if err != nil {
             http.Error(w, err.Error(), http.StatusInternalServerError)
             return