the first step is upload the files on your server go to your url yourdomain.com/clanwars/install

and follow the steps

after the installation you need to delete the foldel install from your ftp

go and edit _database/database.php with your information

//page options
$clananame = 'clan'; /// clan name
$url =''; //your url

// email option
$email_Host = '';  // Specify main and backup SMTP servers
$email_Username = '';                 // SMTP username
$email_Password = '';                           // SMTP password
$email_SMTPSecure = 'ssl';                            // Enable TLS encryption, `ssl` also accepted
$email_Port = 465;  	
$admin_email =''; /// admin email 

the log in access and password for you site 

login to the site using 
username: Admin
password: Administrator