diff --git a/ProjectMonorail/ProjectMonorail/AppSettings.json b/ProjectMonorail/ProjectMonorail/AppSettings.json
new file mode 100644
index 0000000..2fb5725
--- /dev/null
+++ b/ProjectMonorail/ProjectMonorail/AppSettings.json
@@ -0,0 +1,20 @@
+{
+  "Serilog": {
+    "Using": [ "Serilog.Sinks.File" ],
+    "MinimumLevel": "Information",
+    "WriteTo": [
+      {
+        "Name": "File",
+        "Args": {
+          "path": "Logs/log_.log",
+          "rollingInterval": "Day",
+          "outputTemplate": "[{Timestamp:HH:mm:ss.fff}]{Level:u4}: {Message:lj}{NewLine}{Exception}"
+        }
+      }
+    ],
+    "Enrich": [ "FromLogContext", "WithMachineName", "WithThreadId" ],
+    "Properties": {
+      "Application": "Monorail"
+    }
+  }
+}
\ No newline at end of file
diff --git a/ProjectMonorail/ProjectMonorail/FormMonorailCollection.cs b/ProjectMonorail/ProjectMonorail/FormMonorailCollection.cs
index ff9b2b0..50985a7 100644
--- a/ProjectMonorail/ProjectMonorail/FormMonorailCollection.cs
+++ b/ProjectMonorail/ProjectMonorail/FormMonorailCollection.cs
@@ -1,6 +1,7 @@
-using ProjectMonorail.DrawingObjects;
+using Microsoft.Extensions.Logging;
+using ProjectMonorail.DrawingObjects;
 using ProjectMonorail.Generics;
-using System.Windows.Forms;
+using ProjectMonorail.Exceptions;
 
 namespace ProjectMonorail
 {
@@ -14,13 +15,19 @@ namespace ProjectMonorail
         /// </summary>
         private readonly MonorailsGenericStorage _storage;
 
+        /// <summary>
+        /// Логгер
+        /// </summary>
+        private readonly ILogger _logger;
+
         /// <summary>
         /// Конструктор
         /// </summary>
-        public FormMonorailCollection()
+        public FormMonorailCollection(ILogger<FormMonorailCollection> logger)
         {
             InitializeComponent();
             _storage = new MonorailsGenericStorage(pictureBoxCollection.Width, pictureBoxCollection.Height);
+            _logger = logger;
         }
 
         /// <summary>
@@ -53,11 +60,13 @@ namespace ProjectMonorail
         {
             if (string.IsNullOrEmpty(textBoxNameSet.Text))
             {
-                MessageBox.Show("Не все данные заполнены", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                MessageBox.Show("Not all data are filled in", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                _logger.LogWarning("Failed attempt to add a set: not all data are filled in");
                 return;
             }
             _storage.AddSet(textBoxNameSet.Text);
             ReloadObjects();
+            _logger.LogInformation($"Set added: {textBoxNameSet.Text}");
         }
 
         /// <summary>
@@ -80,12 +89,16 @@ namespace ProjectMonorail
         {
             if (listBoxSets.SelectedIndex == -1)
             {
+                _logger.LogWarning($"Failed attempt to delete a set: no set is selected");
                 return;
             }
-            if (MessageBox.Show($"Удалить набор {listBoxSets.SelectedItem}?", "Удаление", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
+            string name = listBoxSets.SelectedItem.ToString() ?? string.Empty;
+
+            if (MessageBox.Show($"Delete a set {name}?", "Deletion", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
             {
-                _storage.DelSet(listBoxSets.SelectedItem.ToString() ?? string.Empty);
+                _storage.DelSet(name);
                 ReloadObjects();
+                _logger.LogInformation($"Deleted set: {name}");
             }
         }
 
@@ -101,17 +114,27 @@ namespace ProjectMonorail
             var obj = _storage[listBoxSets.SelectedItem.ToString() ?? string.Empty];
             if (obj == null)
             {
+                _logger.LogWarning($"Failed attempt to add a object: set is null");
                 return;
             }
 
-            if (obj + monorail != -1)
+            try
             {
-                MessageBox.Show("Объект добавлен");
-                pictureBoxCollection.Image = obj.ShowMonorails();
+                if (obj + monorail != -1)
+                {
+                    MessageBox.Show("Object added");
+                    pictureBoxCollection.Image = obj.ShowMonorails();
+                    _logger.LogInformation($"Object added {monorail}");
+                }
+                else
+                {
+                    MessageBox.Show("Failed attempt to add a object");
+                }
             }
-            else
+            catch (ApplicationException ex)
             {
-                MessageBox.Show("Не удалось добавить объект");
+                MessageBox.Show(ex.Message);
+                _logger.LogWarning($"Failed attempt to add a object: {ex.Message}");
             }
         }
 
@@ -124,6 +147,7 @@ namespace ProjectMonorail
         {
             if (listBoxSets.SelectedIndex == -1)
             {
+                _logger.LogWarning($"Failed attempt to add a object: no set is selected");
                 return;
             }
             var formMonorailConfig = new FormMonorailConfig();
@@ -140,31 +164,41 @@ namespace ProjectMonorail
         {
             if (listBoxSets.SelectedIndex == -1)
             {
+                _logger.LogWarning($"Failed attempt to delete a object: no set is selected");
                 return;
             }
 
             var obj = _storage[listBoxSets.SelectedItem.ToString() ?? string.Empty];
             if (obj == null)
             {
+                _logger.LogWarning($"Failed attempt to delete a object: set is null");
                 return;
             }
 
-            if (MessageBox.Show("Удалить объект?", "Удаление", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.No)
+            if (MessageBox.Show("Delete a object?", "Deletion", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.No)
             {
                 return;
             }
 
             int pos = Convert.ToInt32(maskedTextBoxNumber.Text);
-
-            if (obj - pos)
+            try
             {
-                MessageBox.Show("Объект удален");
-                pictureBoxCollection.Image = obj.ShowMonorails();
+                if (obj - pos)
+                {
+                    MessageBox.Show("Object deleted");
+                    pictureBoxCollection.Image = obj.ShowMonorails();
+                    _logger.LogInformation($"Deleted object in position: {pos}");
+                }
+                else
+                {
+                    MessageBox.Show("Failed attempt to delete a object");
+                }
             }
-            else
+            catch (MonorailNotFoundException ex)
             {
-                MessageBox.Show("Не удалось удалить объект");
-            }
+                MessageBox.Show(ex.Message);
+                _logger.LogWarning($"Failed attempt to delete a object: {ex.Message}");
+            } 
         }
 
         /// <summary>
@@ -197,15 +231,18 @@ namespace ProjectMonorail
         {
             if (saveFileDialog.ShowDialog() == DialogResult.OK)
             {
-                if (_storage.SaveData(saveFileDialog.FileName))
+                try
                 {
+                    _storage.SaveData(saveFileDialog.FileName);
                     MessageBox.Show("Save was successful",
                     "Result", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                    _logger.LogInformation($"File saved successfully: {saveFileDialog.FileName}");
                 }
-                else
+                catch (Exception ex)
                 {
-                    MessageBox.Show("Save failed", "Result",
+                    MessageBox.Show($"Save failed: {ex.Message}", "Result",
                     MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    _logger.LogWarning($"File saving failed: {ex.Message}");
                 }
             }
         }
@@ -219,16 +256,19 @@ namespace ProjectMonorail
         {
             if (openFileDialog.ShowDialog() == DialogResult.OK)
             {
-                if (_storage.LoadData(openFileDialog.FileName))
+                try
                 {
+                    _storage.LoadData(openFileDialog.FileName);
                     MessageBox.Show("Load was successful",
                     "Result", MessageBoxButtons.OK, MessageBoxIcon.Information);
                     ReloadObjects();
+                    _logger.LogInformation($"File loaded successfully: {openFileDialog.FileName}");
                 }
-                else
+                catch (Exception ex)
                 {
-                    MessageBox.Show("Load failed", "Result",
+                    MessageBox.Show($"Load failed: {ex.Message}", "Result",
                     MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    _logger.LogWarning($"File loading failed: {ex.Message}");
                 }
             }
         }
diff --git a/ProjectMonorail/ProjectMonorail/MonorailNotFoundException.cs b/ProjectMonorail/ProjectMonorail/MonorailNotFoundException.cs
new file mode 100644
index 0000000..a619828
--- /dev/null
+++ b/ProjectMonorail/ProjectMonorail/MonorailNotFoundException.cs
@@ -0,0 +1,14 @@
+using System.Runtime.Serialization;
+
+namespace ProjectMonorail.Exceptions
+{
+    [Serializable]
+    internal class MonorailNotFoundException : ApplicationException
+    {
+        public MonorailNotFoundException(int i) : base($"Object not found by position {i}") { }
+        public MonorailNotFoundException() : base() { }
+        public MonorailNotFoundException(string message) : base(message) { }
+        public MonorailNotFoundException(string message, Exception exception) : base(message, exception) { }
+        protected MonorailNotFoundException(SerializationInfo info, StreamingContext contex) : base(info, contex) { }
+    }
+}
diff --git a/ProjectMonorail/ProjectMonorail/MonorailsGenericCollection.cs b/ProjectMonorail/ProjectMonorail/MonorailsGenericCollection.cs
index 40b0329..40e87f2 100644
--- a/ProjectMonorail/ProjectMonorail/MonorailsGenericCollection.cs
+++ b/ProjectMonorail/ProjectMonorail/MonorailsGenericCollection.cs
@@ -80,11 +80,7 @@ namespace ProjectMonorail.Generics
         public static bool operator -(MonorailsGenericCollection<T, U> collect, int pos)
         {
             T? obj = collect._collection[pos];
-            if (obj != null)
-            {
-                return collect._collection.Remove(pos);
-            }
-            return false;
+            return collect._collection.Remove(pos);
         }
 
         /// <summary>
diff --git a/ProjectMonorail/ProjectMonorail/MonorailsGenericStorage.cs b/ProjectMonorail/ProjectMonorail/MonorailsGenericStorage.cs
index f23c149..70e883f 100644
--- a/ProjectMonorail/ProjectMonorail/MonorailsGenericStorage.cs
+++ b/ProjectMonorail/ProjectMonorail/MonorailsGenericStorage.cs
@@ -95,8 +95,7 @@ namespace ProjectMonorail.Generics
         /// Сохранение информации по монорельсам в хранилище в файл
         /// </summary>
         /// <param name="filename">Путь и имя файла</param>
-        /// <returns>true - сохранение прошло успешно, false - ошибка при сохранении данных</returns>
-        public bool SaveData(string filename)
+        public void SaveData(string filename)
         {
             if (File.Exists(filename))
             {
@@ -114,35 +113,33 @@ namespace ProjectMonorail.Generics
             }
             if (data.Length == 0)
             {
-                return false;
+                throw new Exception("Invalid operation, no data to save");
             }
             using StreamWriter sw = new(filename);
             sw.Write($"MonorailStorage{Environment.NewLine}{data}");
-            return true;
         }
 
         /// <summary>
         /// Загрузка информации по монорельсам в хранилище из файла
         /// </summary>
         /// <param name="filename">Путь и имя файла</param>
-        /// <returns>true - загрузка прошла успешно, false - ошибка при загрузке данных</returns>
-        public bool LoadData(string filename)
+        public void LoadData(string filename)
         {
             if (!File.Exists(filename))
             {
-                return false;
+                throw new FileNotFoundException("File not found");
             }
             using (StreamReader sr = new(filename))
             {
                 string str = sr.ReadLine();
                 if (str == null || str.Length == 0)
                 {
-                    return false;
+                    throw new NullReferenceException("No data to load");
                 }
                 if (!str.StartsWith("MonorailStorage"))
                 {
                     //если нет такой записи, то это не те данные
-                    return false;
+                    throw new InvalidDataException("Invalid data format");
                 }
                 _monorailsStorages.Clear();
                 while ((str = sr.ReadLine()) != null)
@@ -161,14 +158,13 @@ namespace ProjectMonorail.Generics
                         {
                             if (collection + monorail == -1)
                             {
-                                return false;
+                                throw new ApplicationException("Error adding to collection");
                             }
                         }
                     }
                     _monorailsStorages.Add(record[0], collection);
                 }
             }
-            return true;
         }
     }
 }
diff --git a/ProjectMonorail/ProjectMonorail/Program.cs b/ProjectMonorail/ProjectMonorail/Program.cs
index beba8fb..543d8c9 100644
--- a/ProjectMonorail/ProjectMonorail/Program.cs
+++ b/ProjectMonorail/ProjectMonorail/Program.cs
@@ -1,3 +1,8 @@
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using Serilog;
+
 namespace ProjectMonorail
 {
     internal static class Program
@@ -11,7 +16,29 @@ namespace ProjectMonorail
             // To customize application configuration such as set high DPI settings or default font,
             // see https://aka.ms/applicationconfiguration.
             ApplicationConfiguration.Initialize();
-            Application.Run(new FormMonorailCollection());
+            var services = new ServiceCollection();
+            ConfigureServices(services);
+            using (ServiceProvider serviceProvider = services.BuildServiceProvider())
+            {
+                Application.Run(serviceProvider.GetRequiredService<FormMonorailCollection>());
+            }
+        }
+
+        private static void ConfigureServices(ServiceCollection services)
+        {
+            services.AddSingleton<FormMonorailCollection>().AddLogging(option =>
+            {
+                string[] path = Directory.GetCurrentDirectory().Split('\\');
+                string pathNeed = "";
+                for (int i = 0; i < path.Length - 3; i++)
+                {
+                    pathNeed += path[i] + "\\";
+                }
+                var configuration = new ConfigurationBuilder().SetBasePath(Directory.GetCurrentDirectory()).AddJsonFile(path: $"{pathNeed}appsettings.json", optional: false, reloadOnChange: true).Build();
+                var logger = new LoggerConfiguration().ReadFrom.Configuration(configuration).CreateLogger();
+                option.SetMinimumLevel(LogLevel.Information);
+                option.AddSerilog(logger);
+            });
         }
     }
 }
\ No newline at end of file
diff --git a/ProjectMonorail/ProjectMonorail/ProjectMonorail.csproj b/ProjectMonorail/ProjectMonorail/ProjectMonorail.csproj
index 13ee123..c579bd7 100644
--- a/ProjectMonorail/ProjectMonorail/ProjectMonorail.csproj
+++ b/ProjectMonorail/ProjectMonorail/ProjectMonorail.csproj
@@ -8,6 +8,17 @@
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
+    <PackageReference Include="NLog.Extensions.Logging" Version="5.3.5" />
+    <PackageReference Include="Serilog" Version="3.1.1" />
+    <PackageReference Include="Serilog.AspNetCore" Version="8.0.0" />
+    <PackageReference Include="Serilog.Settings.Configuration" Version="8.0.0" />
+    <PackageReference Include="Serilog.Sinks.File" Version="5.0.0" />
+  </ItemGroup>
+
   <ItemGroup>
     <Compile Update="Properties\Resources.Designer.cs">
       <DesignTime>True</DesignTime>
diff --git a/ProjectMonorail/ProjectMonorail/SetGeneric.cs b/ProjectMonorail/ProjectMonorail/SetGeneric.cs
index bab1cd7..90c37bb 100644
--- a/ProjectMonorail/ProjectMonorail/SetGeneric.cs
+++ b/ProjectMonorail/ProjectMonorail/SetGeneric.cs
@@ -1,4 +1,7 @@
-namespace ProjectMonorail.Generics
+using ProjectMonorail.Exceptions;
+using System.Collections.Generic;
+
+namespace ProjectMonorail.Generics
 {
     /// <summary>
     /// Параметризованный набор объектов
@@ -48,9 +51,11 @@
         /// <param name="position">Позиция</param>
         /// <returns></returns>
         public int Insert(T monorail, int position)
-        {   
-            if (position < 0 || position > Count || Count >= _maxCount)
-                return -1;
+        {
+            if (position < 0 || position > Count)
+                throw new MonorailNotFoundException("Impossible to insert");
+            if (Count >= _maxCount)
+                throw new StorageOverflowException(_maxCount);
 
             _places.Insert(position, monorail);
             return position;
@@ -64,7 +69,7 @@
         public bool Remove(int position)
         {
             if (position < 0 || position >= Count)
-                return false;
+                throw new MonorailNotFoundException(position);
             _places.RemoveAt(position);
             return true;
         }
diff --git a/ProjectMonorail/ProjectMonorail/StorageOverflowException.cs b/ProjectMonorail/ProjectMonorail/StorageOverflowException.cs
new file mode 100644
index 0000000..2984f2f
--- /dev/null
+++ b/ProjectMonorail/ProjectMonorail/StorageOverflowException.cs
@@ -0,0 +1,14 @@
+using System.Runtime.Serialization;
+
+namespace ProjectMonorail.Exceptions
+{
+    [Serializable]
+    internal class StorageOverflowException : ApplicationException
+    {
+        public StorageOverflowException(int count) : base($"The set has exceeded the allowable count: { count}") { }
+        public StorageOverflowException() : base() { }
+        public StorageOverflowException(string message) : base(message) { }
+        public StorageOverflowException(string message, Exception exception) : base(message, exception) { }
+        protected StorageOverflowException(SerializationInfo info, StreamingContext contex) : base(info, contex) { }
+    }
+}