I already change inside parameters. About the PHP mail and send mail, do I need to change send mail.php inside the folder projectorria/tools or XAMPP folder.
No you should not change some code in sendMail.php.
Only parmetering should be enough.
1) Check you have a SMTP server : either remote or local
2) Indicate parameters depending on your config :
$paramMailSender => a valid email address
$paramMailReplyTo => a valid email address
$paramAdminMail => a valid email address
$paramMailSmtpServer = 'localhost' if your SMTP server is local or address of your remote SMTP server (for instance 'smtp.free.fr')
$paramMailSmtpPort = '25' by default (default SMTP port), can be changed depending on your SMTP server.
$paramMailSendmailPath = '' blank if your PHP config uses defaut sendmail program. If not, indicate full path to SMTP executable. Not restricted to sendmail (one user configurated it to run postfix... you may find his posts on the Forum)