Delete sql2/bin/Debug directory

sql2/bin/Debug/PaymentLogs.exe.config

@@ -1,13 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<configuration>
-    <configSections>
-    </configSections>
-    <connectionStrings>
-        <add name="PaymentLogs.Properties.Settings.Отчет_оплаты_обучения_обучающихсяConnectionString"
-            connectionString="Data Source=DESKTOP-QN8TL8D\SQLEXPRESS;Initial Catalog=&quot;Отчет оплаты обучения обучающихся&quot;;Integrated Security=True;Encrypt=False"
-            providerName="System.Data.SqlClient" />
-    </connectionStrings>
-    <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
-    </startup>
-</configuration>

sql2/bin/Debug/sql2.exe.config

@@ -1,13 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<configuration>
-    <configSections>
-    </configSections>
-    <connectionStrings>
-        <add name="sql2.Properties.Settings.Отчет_оплаты_обучения_обучающихсяConnectionString"
-            connectionString="Data Source=DESKTOP-QN8TL8D\SQLEXPRESS;Initial Catalog=&quot;Отчет оплаты обучения обучающихся&quot;;Integrated Security=True;Encrypt=False"
-            providerName="System.Data.SqlClient" />
-    </connectionStrings>
-    <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
-    </startup>
-</configuration>