At the entrance to the site, sometimes at the exit, at the entrance to the registration. A system message. How to remove it?

It appeared after I turned on the plugin System - Jomsocial Redirect

Hi,

you can edit this file:
[joomla root]/plugins/system/jomsocialredirect/jomsocialredirect.php at line 85, change the code from

$mainframe->redirect($link, JText::_($this->params->get('redirect_login_msg', 'LOGIN_SUCCESSFUL')), 'message');

$mainframe->redirect($link);