Remove Profile menu items

Hello. Been trying to remove Profile menu items by editing "wplms-customizer plugin" in plugins-editor and inserting the code below, but receive the following error. Please advise: ============= (Error): Warning: Use of undefined constant ‘bp_setup_nav’ - assumed '‘bp_setup_nav’' (this will throw an Error in a future version of PHP) in /var/www/virtual/sais.org.uk/htdocs/wp-content/plugins/wplms-customizer/wplms-customizer.php on line 41 Warning: Use of undefined constant ‘bp_remove_profile_menu’ - assumed '‘bp_remove_profile_menu’' (this will throw an Error in a future version of PHP) in /var/www/virtual/sais.org.uk/htdocs/wp-content/plugins/wplms-customizer/wplms-customizer.php on line 41 ================== (Code Inseerted): add_action( ‘bp_actions’, ‘remove_member_profile_tabs’, 5 ); function remove_member_profile_tabs() { global $bp; bp_core_remove_nav_item( ‘activity’ ); //for activity tab removal bp_core_remove_nav_item( ‘forums’ ); //for forums tab removal bp_core_remove_nav_item( ‘groups’ ); //for group tab removal bp_core_remove_nav_item( ‘messages’ ); //for messages tab removal bp_core_remove_nav_item( ‘friends’ ); //for friends tab removal bp_core_remove_nav_item( ‘course’ ); //for course tab removal bp_core_remove_nav_item( ‘achievements’ ); //for achievements tab removal bp_core_remove_nav_item( ‘notifications’ ); //for notifications tab removal }