IceCreamShop/IceCreamShopDatabaseImplement/Models/Shop.cs

@@ -85,6 +85,8 @@ namespace IceCreamShopDatabaseImplement.Models
         public void UpdateIceCreams(IceCreamShopDataBase context,
        ShopBindingModel model)
         {
+            if (model.ShopIceCreams == null)
+                return; 
             var shopIceCreams = context.ShopIceCreams.Where(rec =>
            rec.ShopId == model.Id).ToList();
             if (shopIceCreams != null && shopIceCreams.Count > 0)

IceCreamShop/IceCreamShopRestApi/Controllers/ShopController.cs

@@ -68,6 +68,7 @@ namespace IceCreamShopRestApi.Controllers
 		{
 			try
 			{
+				model.ShopIceCreams = null!;
 				return _logic.Update(model);
 			}
 			catch (Exception ex)