PHP 7 Error Message

First thank you for this cool plugin. However, if php 7 is enabled debug mode is showing the following error message

Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; Sexy_Login_Widget has a deprecated constructor in /www/htdocs/w9b88a/demo/wp-content/plugins/sexy-login/inc/class-sexy-login-widget.php on line 2

Any tips how to solve this are appreciated.