title: I get an error when database is connecting
body: <p>I have a probleme with the database.
  On my computer is working well but when i try to run it from other computer is not working.</p>
  
  <p>This is connection string:</p>
  
  <pre><code>SqlConnection connection = new SqlConnection(@"Data Source=(LocalDB)\v11.0;AttachDbFilename=|DataDirectory|\OlxBotDataBase.mdf;Integrated Security=True");
  </code></pre>
  
  <p>I try to put database in %appdata% folder, but is not working or maybe i'm doing it wrong.</p>
  
  <p>This is the error:<br>
  <img src="https://i.stack.imgur.com/Vrm9h.png" alt=""></p>
  
  <p><strong>EDIT:</strong> I installed sql server, but now i get this error:
   <img src="https://i.stack.imgur.com/FgerK.png" alt=""></p>