Small syntax error in version 2.0.3

hms-testimonials.php
Notice: Use of undefined constant HMS_Testimonials – assumed ‘HMS_Testimonials’ in C:\xampp\htdocs\hfopencart\wp-content\plugins\hms-testimonials\hms-testimonials.php on line 36

Line 36
add_filter('plugin_action_links', array(HMS_Testimonials, 'settings_link'), 10, 2);

should be
add_filter('plugin_action_links', array('HMS_Testimonials', 'settings_link'), 10, 2);

http://wordpress.org/extend/plugins/hms-testimonials/