Error in adding second database to web config

It is working now, the path was not correct a folder was missing. :)

Thank you Jignesh, I still have the error

Cannot attach the file 'D:\Documents\_VSC\ASP.NET\HazInfoSM\App_Data\evaris_rosql.mdf' as database 'evaris_rosql.mdf'.

with web.config like

However, if I declare the connection string locally, for example with

protected void GetObiectiv()
{
    string connStringEvaris = "Data Source=(LocalDB)\\MSSQLLocalDB;AttachDbFilename=D:\\Documents\\_VSC\\ASP.NET\\Evaris\\App_Data\\evaris_rosql.mdf;Integrated Security=True";

    using (SqlConnection conn = new SqlConnection(connStringEvaris))
    {
        string sqlQuery = "SELECT DISTINCT OID,Obiectiv FROM tblObiectiv ORDER BY Obiectiv";
        using (SqlCommand cmd = new SqlCommand(sqlQuery, conn))
        {
            cmd.CommandType = CommandType.Text;

            SqlDataAdapter da = new SqlDataAdapter(cmd);
            conn.Open();
            DataSet ds = new DataSet();
            da.Fill(ds);
            LV1.DataSource = ds.Tables[0];
            LV1.DataBind();
            conn.Close();
        }
    }
}

is working very well. What am I doing wrong in web.config?