Activation triggered a fatal error

LBAK User Tracking throws a fatal error on activation. Using 1.8.2. Here is the result. Thanks for your help.

Fatal error: Cannot redeclare lbakut_get_version() (previously declared in /opt/bitnami/apps/wordpress/htdocs/wp-content/plugins/lbak-user-tracking/lbak_user_tracking.php:47) in /opt/bitnami/apps/wordpress/htdocs/wp-content/plugins/lbak-user-tracking/lbak_user_tracking.php on line 48