diff --git a/Server/Models/Binder/AppSettings.cs b/Server/Models/Binder/AppSettings.cs
index 89dfd09..c82c746 100644
--- a/Server/Models/Binder/AppSettings.cs
+++ b/Server/Models/Binder/AppSettings.cs
@@ -38,6 +38,23 @@ public class AppSettings
         return result;
     }
 
+    private static void PreVerify(IConfigurationRoot configurationRoot, AppSettings? appSettings)
+    {
+        if (appSettings?.Company is null)
+        {
+            List<string> paths = new();
+            foreach (IConfigurationProvider configurationProvider in configurationRoot.Providers)
+            {
+                if (configurationProvider is not Microsoft.Extensions.Configuration.Json.JsonConfigurationProvider jsonConfigurationProvider)
+                    continue;
+                if (jsonConfigurationProvider.Source.FileProvider is not Microsoft.Extensions.FileProviders.PhysicalFileProvider physicalFileProvider)
+                    continue;
+                paths.Add(physicalFileProvider.Root);
+            }
+            throw new NotSupportedException($"Not found!{Environment.NewLine}{string.Join(Environment.NewLine, paths.Distinct())}");
+        }
+    }
+
     private static Models.AppSettings Get(AppSettings? appSettings)
     {
         Models.AppSettings result;