Hi Evgeniy,
I am sorry, I can't understand you well.
If you want to change the registration type, you can configure it here: EasySocial > Profile type > Registration. Here is my screenshot:
http://screencast.com/t/XKVQAiLtHzSc .
For sending the emails, we highly recommends you to use cronjob. Cronjobs allows email processing to run at the back end while not interfering with the site operations. To setup cronjobs, we need CPanel. Can you consult with your hosting provider by asking them if I want to setup the cronjob on the server, what should I do. You can use this as a guide:
http://docs.easysocial.io/administrators/cronjobs .
It seems like you're using ES1.3.16 which is a little bit older version. There is a typing error in mailer function. Can you please download this file and put it in your site here: .../administrator/components/com_easysocial/includes/mailer/mailer.php and see how it goes.
If you unable to do this, perhaps you can provide us with the correct FTP access because the one you gave to us points to an empty file.
Hope this helps.
Thanks.