What's it problem ... why not works righT?

i have download a project for backup/restore sql server db in c# ... even though i have changed its connection string according to my sql server name but i don't know why it still doesn't work right... please kindly help me to run this program.
 
SqlServer Backup/Restore Utility[^]
 
Before running an application, edit connection Strings section in BackupRestore.exe.config file to connect my database like

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <configSections>
    </configSections>
    <connectionStrings>
        <add name="Alioglu.Util.SqlSrv.BackupRestore.Properties.Settings.masterConnectionString"
            connectionString="Data Source=PERSIAN-PC\SQLEXPRESS;Initial catalog=master;Integrated Security=True;User Instance=True"
            providerName="System.Data.SqlClient" />
    </connectionStrings>
  <appSettings>
    <add key="SqlFileLocations" value="C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\DATA" />
  </appSettings>
</configuration>

 
but restore part why not working yet?
 

many thanks