Index: iknow-api/Models/ContactInfo.cs
===================================================================
--- iknow-api/Models/ContactInfo.cs	(revision f8af32b1ed94dbcbdb405a0fc54b7de70ce69be5)
+++ iknow-api/Models/ContactInfo.cs	(revision 35924766238e487b4af38d5827bdcda86852bd88)
@@ -13,5 +13,5 @@
         
         public int UserId { get; set; }
-        public User User { get; set; }
+        public User? User { get; set; }
     }
 }
Index: iknow-api/Models/EnrollmentInfo.cs
===================================================================
--- iknow-api/Models/EnrollmentInfo.cs	(revision f8af32b1ed94dbcbdb405a0fc54b7de70ce69be5)
+++ iknow-api/Models/EnrollmentInfo.cs	(revision 35924766238e487b4af38d5827bdcda86852bd88)
@@ -3,9 +3,9 @@
 namespace iknow_api.Models
 {
-    public enum quota
+    public enum Quota
     {
         drzavna, privatna, stipendija
     }
-    public enum major
+    public enum Major
     {
         SIIS, PIT, KN, KI, IMB, IE, SSP, SEIS
@@ -15,8 +15,8 @@
         public int Id { get; set; }
         public int enrollmentYear { get; set; }
-        public quota quota;
-        public major major { get; set; }
+        public Quota quota;
+        public Major major { get; set; }
         public int UserId { get; set; }
-        public User User { get; set; }
+        public User? User { get; set; }
     }
 }