PHP errors with debug mode

Notice: Use of undefined constant ADVTAG_VERSION – assumed ‘ADVTAG_VERSION’ in /wordpress/wp-content/plugins/advanced-tagline/advanced-tagline.php on line 28

Notice: Use of undefined constant ADVTAG_MODE – assumed ‘ADVTAG_MODE’ in /wordpress/wp-content/plugins/advanced-tagline/advanced-tagline.php on line 29

Notice: Use of undefined constant ADVTAG_TAGPAIRS – assumed ‘ADVTAG_TAGPAIRS’ in /wordpress/wp-content/plugins/advanced-tagline/advanced-tagline.php on line 30

Notice: Use of undefined constant ADVTAG_TYPE – assumed ‘ADVTAG_TYPE’ in /wordpress/wp-content/plugins/advanced-tagline/advanced-tagline.php on line 31

Notice: register_sidebar_widget is deprecated since version 2.8! Use wp_register_sidebar_widget() instead. in /wordpress/wp-includes/functions.php on line 3382

Notice: register_widget_control is deprecated since version 2.8! Use wp_register_widget_control() instead. in /wordpress/wp-includes/functions.php on line 3382

Notice: has_cap was called with an argument that is deprecated since version 2.0! Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead. in /wordpress/wp-includes/functions.php on line 3466