diff --git a/AsbCloudApp/Exceptions/ArgumentInvalidException.cs b/AsbCloudApp/Exceptions/ArgumentInvalidException.cs
index f5e3f3cd..5db63313 100644
--- a/AsbCloudApp/Exceptions/ArgumentInvalidException.cs
+++ b/AsbCloudApp/Exceptions/ArgumentInvalidException.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
 
 namespace AsbCloudApp.Exceptions
 {
@@ -9,9 +10,9 @@ namespace AsbCloudApp.Exceptions
     public class ArgumentInvalidException : Exception
     {
         /// <summary>
-        /// название аргумента
+        /// словарь с ошибками, где ключ - имя аргумента, а значение - массив из одного сообщения
         /// </summary>
-        public IDictionary<string, string[]> ParamsNames { get; } = null!;
+        public IDictionary<string, string[]> ErrorState { get; } = null!;
 
         /// <summary>
         /// конструктор
@@ -21,7 +22,7 @@ namespace AsbCloudApp.Exceptions
         public ArgumentInvalidException(string paramName, string message)
             : base(message)
         {
-            ParamsNames = new Dictionary<string, string[]>() {
+            ErrorState = new Dictionary<string, string[]>() {
                 { paramName, new[]{ message } }
             };
         }
@@ -34,9 +35,7 @@ namespace AsbCloudApp.Exceptions
         public ArgumentInvalidException(string[] paramsNames, string message)
             : base(message)
         {
-            ParamsNames = new Dictionary<string, string[]>() {
-                { string.Join(", ", paramsNames), new[]{ message } }
-            };
+            ErrorState = paramsNames.ToDictionary(paramName => paramName, item => new[] { message });
         }
     }
 }
diff --git a/AsbCloudWebApi/Middlewares/SimplifyExceptionsMiddleware.cs b/AsbCloudWebApi/Middlewares/SimplifyExceptionsMiddleware.cs
index 3b3f052a..3c444b4a 100644
--- a/AsbCloudWebApi/Middlewares/SimplifyExceptionsMiddleware.cs
+++ b/AsbCloudWebApi/Middlewares/SimplifyExceptionsMiddleware.cs
@@ -56,7 +56,7 @@ namespace AsbCloudWebApi.Middlewares
 
         private static string MakeJsonBody(ArgumentInvalidException ex)
         {
-            var problem = new ValidationProblemDetails(ex.ParamsNames);
+            var problem = new ValidationProblemDetails(ex.ErrorState);
             var buffer = System.Text.Json.JsonSerializer.Serialize(problem);
             return buffer;
         }