diff --git a/1.sources/MyHealth/src/managedbean/common/ValidationUtils.java b/1.sources/MyHealth/src/managedbean/common/ValidationUtils.java
index 8d90abd..e66ae0a 100644
--- a/1.sources/MyHealth/src/managedbean/common/ValidationUtils.java
+++ b/1.sources/MyHealth/src/managedbean/common/ValidationUtils.java
@@ -69,7 +69,10 @@ public class ValidationUtils {
 	 */
 	public static boolean checkIfNifAlreadyRegistered(CommonFacadeRemote remoteSvc, UserType userType, String nif, Integer id) {
 		boolean nifExists = false;
-
+		
+		if (userType == null || remoteSvc == null)
+			return nifExists;
+		
 		switch (userType) {
 		case ADMINISTRATOR:
 			break;