diff --git a/AirPlaneWithRadar/AirPlaneWithRadar/FormMapWithSetPlains.cs b/AirPlaneWithRadar/AirPlaneWithRadar/FormMapWithSetPlains.cs
index a2c6cc7..5a14af4 100644
--- a/AirPlaneWithRadar/AirPlaneWithRadar/FormMapWithSetPlains.cs
+++ b/AirPlaneWithRadar/AirPlaneWithRadar/FormMapWithSetPlains.cs
@@ -120,15 +120,24 @@ namespace AirPlaneWithRadar
             }
             if (maskedTextBoxPosition.Text == null)
                 return;
-            int pos = Convert.ToInt32(maskedTextBoxPosition.Text);
-            if ((_mapsCollection[listBoxMaps.SelectedItem?.ToString() ?? string.Empty] - (pos - 1)) != null)
+            try
             {
-                MessageBox.Show("Объект удален");
-                pictureBox.Image = _mapsCollection[listBoxMaps.SelectedItem?.ToString() ?? string.Empty].ShowSet();
-            }
-            else
+                int pos = Convert.ToInt32(maskedTextBoxPosition.Text);
+                if ((_mapsCollection[listBoxMaps.SelectedItem?.ToString() ?? string.Empty] - (pos - 1)) != null)
+                {
+                    MessageBox.Show("Объект удален");
+                    pictureBox.Image = _mapsCollection[listBoxMaps.SelectedItem?.ToString() ?? string.Empty].ShowSet();
+                }
+                else
+                {
+                    MessageBox.Show("Не удалось удалить объект");
+                }
+            }catch(PlainNotFoundException ex)
             {
-                MessageBox.Show("Не удалось удалить объект");
+                MessageBox.Show("Wrong id");
+            }catch(Exception ex)
+            {
+                MessageBox.Show("Error of delete");
             }
         }
         private void ButtonShowStorage_Click(object sender, EventArgs e)
@@ -175,16 +184,18 @@ namespace AirPlaneWithRadar
         }
         private void SaveToolStrip_Click(object sender, EventArgs e)
         {
+           
             if (saveFileDialog.ShowDialog() == DialogResult.OK)
             {
-                if (_mapsCollection.SaveData(saveFileDialog.FileName))
+                try
                 {
-                    MessageBox.Show("Сохранение прошло успешно", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                   _mapsCollection.SaveData(saveFileDialog.FileName);
                 }
-                else
-                {
+                catch(Exception ex) {
                     MessageBox.Show("Не сохранилось", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Error);
                 }
+               MessageBox.Show("Сохранение прошло успешно", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Information);
+               
             }
         }
 
@@ -192,17 +203,20 @@ namespace AirPlaneWithRadar
         {
             if (openFileDialog.ShowDialog() == DialogResult.OK)
             {
-                if (_mapsCollection.LoadData(openFileDialog.FileName) && _mapsCollection.Count != 0)
+                try
                 {
+                    _mapsCollection.LoadData(openFileDialog.FileName);
+                }
+                catch (Exception ex) 
+                {
+                    MessageBox.Show("Не удалось загрузить", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+               
                     MessageBox.Show("Загрузка прошла успешно", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Information);
                     ReloadMaps();
 
                     pictureBox.Image = _mapsCollection[listBoxMaps.SelectedItem?.ToString() ?? string.Empty].ShowSet();
-                }
-                else
-                {
-                    MessageBox.Show("Не удалось загрузить", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Error);
-                }
+               
             }
         }
 
diff --git a/AirPlaneWithRadar/AirPlaneWithRadar/MapsCollection.cs b/AirPlaneWithRadar/AirPlaneWithRadar/MapsCollection.cs
index 7c476e0..1211360 100644
--- a/AirPlaneWithRadar/AirPlaneWithRadar/MapsCollection.cs
+++ b/AirPlaneWithRadar/AirPlaneWithRadar/MapsCollection.cs
@@ -54,7 +54,7 @@ namespace AirPlaneWithRadar
                     return _mapStorages[ind];
             }
         }
-        public bool SaveData(string filename)
+        public void SaveData(string filename)
         {
             if (File.Exists(filename))
             {
@@ -69,22 +69,22 @@ namespace AirPlaneWithRadar
                 }
             }
 
-            return true;
+          
         }
 
 
 
-        public bool LoadData(string filename)
+        public void LoadData(string filename)
         {
             if (!File.Exists(filename))
             {
-                return false;
+                throw new Exception("File not found");
             }
             using (StreamReader sr = new StreamReader(filename))
             {
                 if (!sr.ReadLine().Equals("MapsCollection"))
                 {
-                    return false;
+                    throw new Exception("Wrong file");
                 }
                 _mapStorages.Clear();
                 string line = sr.ReadLine();
@@ -109,7 +109,7 @@ namespace AirPlaneWithRadar
                     line = sr.ReadLine();
                 }
             }
-            return true;
+          
 
         }
     }
diff --git a/AirPlaneWithRadar/AirPlaneWithRadar/PlainNotFoundException.cs b/AirPlaneWithRadar/AirPlaneWithRadar/PlainNotFoundException.cs
new file mode 100644
index 0000000..c2b8cf2
--- /dev/null
+++ b/AirPlaneWithRadar/AirPlaneWithRadar/PlainNotFoundException.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AirPlaneWithRadar
+{
+    [Serializable]
+    internal class PlainNotFoundException : ApplicationException
+    {
+        public PlainNotFoundException(int i) : base($"Не найден объект по позиции {i}") { }
+        public PlainNotFoundException() : base() { }
+        public PlainNotFoundException(string message) : base(message) { }
+        public PlainNotFoundException(string message, Exception exception) : base(message, exception) { }
+        protected PlainNotFoundException(SerializationInfo info, StreamingContext contex) : base(info, contex) { }
+    }
+}
diff --git a/AirPlaneWithRadar/AirPlaneWithRadar/StorageOverFullException.cs b/AirPlaneWithRadar/AirPlaneWithRadar/StorageOverFullException.cs
new file mode 100644
index 0000000..627eb72
--- /dev/null
+++ b/AirPlaneWithRadar/AirPlaneWithRadar/StorageOverFullException.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AirPlaneWithRadar
+{
+    [Serializable]
+    internal class StorageOverFullException : ApplicationException
+    {
+        public StorageOverFullException(int count) : base($"В наборе превышено допустимое количество: {count}") { }
+        public StorageOverFullException() : base() { }
+        public StorageOverFullException(string message) : base(message) { }
+        public StorageOverFullException(string message, Exception exception) : base(message, exception) { }
+        protected StorageOverFullException(SerializationInfo info, StreamingContext contex) : base(info, contex) { }
+
+    }
+}