add lazy loading for entities

ReallifeGamemode.Server/Entities/Character.cs

@@ -17,7 +17,7 @@ namespace ReallifeGamemode.Server.Entities
 
         [ForeignKey("User")]
         public int UserId { get; set; }
-        public User User { get; set; }
+        public virtual User User { get; set; }
 
         public bool Gender { get; set; }
         public byte Father { get; set; }