вроде работает

IceCreamShop/IceCreamBusinessLogic/BusinessLogics/BackUpLogic.cs

@@ -7,7 +7,7 @@ using System.IO.Compression;
 using System.Reflection;
 using System.Runtime.Serialization.Json;
 
-namespace ConfectioneryBusinessLogic
+namespace IceCreamBusinessLogic.BusinessLogics
 {
     public class BackUpLogic : IBackUpLogic
     {

IceCreamShop/IceCreamShop/FormMain.cs

@@ -1,5 +1,4 @@
 using AbstractIceCreamShopDataModels.Enums;
-using ConfectioneryBusinessLogic;
 using IceCreamBusinessLogic.BusinessLogics;
 using IceCreamShop;
 using IceCreamShopContracts.BindingModels;

IceCreamShop/IceCreamShop/Program.cs

@@ -68,6 +68,7 @@ namespace IceCreamShop
 			DependencyManager.Instance.RegisterType<IReportLogic, ReportLogic>();
 			DependencyManager.Instance.RegisterType<IWorkProcess, WorkModeling>();
 			DependencyManager.Instance.RegisterType<IMessageInfoLogic, MessageInfoLogic>();
+            DependencyManager.Instance.RegisterType<IBackUpLogic, BackUpLogic>();
 
             DependencyManager.Instance.RegisterType<AbstractMailWorker, MailKitWorker>();
 

IceCreamShop/IceCreamShopDatabaseImplement/IceCreamShopDatabaseImplement.csproj

@@ -20,4 +20,8 @@
     <ProjectReference Include="..\IceCreamShopDataModels\IceCreamShopDataModels.csproj" />
   </ItemGroup>
 
+  <Target Name="PostBuild" AfterTargets="PostBuildEvent">
+    <Exec Command="copy /Y &quot;$(TargetDir)*.dll&quot; &quot;$(SolutionDir)ImplementationExtensions\*.dll&quot;" />
+  </Target>
+
 </Project>

IceCreamShop/IceCreamShopDatabaseImplement/Models/Order.cs

@@ -93,7 +93,7 @@ namespace IceCreamShopDatabaseImplement.Models
                     DateCreate = DateCreate,
                     DateImplement = DateImplement,
                     Id = Id,
-                    IceCreamName = IceCream?.IceCreamName ?? string.Empty,
+                    IceCreamName = context.IceCreams.FirstOrDefault(x => x.Id == IceCreamId)?.IceCreamName ?? string.Empty,
                     ImplementerFIO = Implementer?.ImplementerFIO ?? string.Empty,
 					ClientFIO = Client?.ClientFIO ?? string.Empty,
                 };

IceCreamShop/IceCreamShopFileImplement/IceCreamShopFileImplement.csproj

@@ -11,4 +11,8 @@
     <ProjectReference Include="..\IceCreamShopDataModels\IceCreamShopDataModels.csproj" />
   </ItemGroup>
 
+  <Target Name="PostBuild" AfterTargets="PostBuildEvent">
+    <Exec Command="copy /Y &quot;$(TargetDir)*.dll&quot; &quot;$(SolutionDir)ImplementationExtensions\*.dll&quot;" />
+  </Target>
+
 </Project>