fixed registration crash

RentACar/Data/Models/Rents.cs

@@ -20,6 +20,7 @@ namespace Data.Entities
         public DateTime StartDate { get; set; }
         [Required]
         public DateTime EndDate { get; set; }
+ 
         [ForeignKey("User")]
         public string UserId { get; set; }
         public virtual User User { get; set; }

RentACar/Data/Models/User.cs

@@ -1,9 +1,11 @@
 using System;
 using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Identity;
+using Microsoft.EntityFrameworkCore;
 
 namespace Data.Entities
 {
@@ -16,4 +18,5 @@ namespace Data.Entities
         public string PersonalNumber { get; set; }
 
     }
+
 }