diff --git a/GasolineTanker/GasolineTanker/Program.cs b/GasolineTanker/GasolineTanker/Program.cs
index 8a03804..46291d9 100644
--- a/GasolineTanker/GasolineTanker/Program.cs
+++ b/GasolineTanker/GasolineTanker/Program.cs
@@ -30,7 +30,7 @@ namespace GasolineTanker
             {
                 var configuration = new ConfigurationBuilder()
                     .SetBasePath(Directory.GetCurrentDirectory())
-                    .AddJsonFile(path: "C:\\Users\\kashi\\Desktop\\RPP\\GasolineTankerBase\\Base\\GasolineTanker\\GasolineTanker\\appSetting.json", optional: false, reloadOnChange: true)
+                    .AddJsonFile(path: "C:\\Users\\kashi\\Desktop\\RPP\\GasolineTanker\\GasolineTanker\\GasolineTanker\\appSetting.json", optional: false, reloadOnChange: true)
                     .Build();
 
                 var logger = new LoggerConfiguration()
diff --git a/GasolineTanker/GasolineTanker/SetGasolineTankerGeneric.cs b/GasolineTanker/GasolineTanker/SetGasolineTankerGeneric.cs
index c782a6a..0063d66 100644
--- a/GasolineTanker/GasolineTanker/SetGasolineTankerGeneric.cs
+++ b/GasolineTanker/GasolineTanker/SetGasolineTankerGeneric.cs
@@ -27,15 +27,17 @@ namespace GasolineTanker
         }
         public int Insert(T gasolineTanker, int position)
 		{
-            if (_places.Contains(gasolineTanker))
-                throw new ArgumentException($"The {gasolineTanker} object is already in the set");
             if (Count == _maxCount)
                 throw new StorageOverflowException(_maxCount);
-            if (!isCorrectPosition(position))
-            {
+
+            if (position < 0 || position > Count)
                 return -1;
-            }
+
+            if (_places.Contains(gasolineTanker))
+                return -1;
+
             _places.Insert(position, gasolineTanker);
+
             return position;
         }
 		public T Remove(int position)