diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/httputils/HTTPCall.java b/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/httputils/HTTPCall.java
index fd18017..e8face5 100644
--- a/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/httputils/HTTPCall.java
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/httputils/HTTPCall.java
@@ -226,13 +226,13 @@ public class HTTPCall {
 			if(responseCode == HttpURLConnection.HTTP_NOT_FOUND){
 				throw getElementNotFoundException(clz);
 			}
-			if(responseCode == HttpURLConnection.HTTP_CONFLICT){
+			if(responseCode == HttpURLConnection.HTTP_FORBIDDEN){
 				throw getElementAvailableInAnotherContextException(clz);
 			}
 		}
 		
 		
-		if (responseCode != HttpURLConnection.HTTP_OK) {
+		if (responseCode >= HttpURLConnection.HTTP_BAD_REQUEST) {
 			
 			InputStream inputStream = connection.getErrorStream();
 			StringBuilder result = getStringBuilder(inputStream);