[Plugin: JH Portfolio] Fatal error upon activation (Using WordPress 3.0)

Here you go..

<?php
### Class: JH Portfolio Selector
 class WP_Widget_JH_Portfolio_Extra_Taxonomy extends WP_Widget {
	// Constructor
	function WP_Widget_JH_Portfolio_Extra_Taxonomy() {
		$widget_ops = array( 'description' => __( 'Shows a list of tags for the current entry', 'table_rss_news' ) );
		$this->WP_Widget( 'jh_portfolio_extra_taxonomy', __( 'JHP Tags' ), $widget_ops );
	}

	// Display Widget
	function widget( $args, $instance ) {
		extract( $args, EXTR_SKIP );
		extract( $instance );

		echo $before_widget;
		?>
		<?php global $post; if( $terms = wp_get_object_terms( $post->ID,  'jh-portfolio-tag' ) ) : ?>
			<h4><?php echo $tax_title ?></h4>
			<div id="jh-portfolio-extra-taxonomy">
				<p>
					<?php foreach( (array) $terms as $key => $term ) : ?>
						<?php if( $show_link ) : ?>
					   		<a href="<?php echo get_term_link( $term, 'jh-portfolio-tag' ) ?>"><?php echo $term->name ?></a><?php echo $key + 1 !== count( $terms ) ? ', ' : '' ?>
						<?php else : ?>
					   		<?php echo $term->name ?><?php echo $key + 1 !== count( $terms ) ? ', ' : '' ?>
						<?php endif; ?>
					<?php endforeach; ?>
				</p>
			</div>
			<?php
		endif;
		echo $after_widget;

	}

	function update( $new_instance, $old_instance ) {
		$instance = $old_instance;
		$instance['tax_title'] = (string) strip_tags( $new_instance['tax_title'] );
		$instance['show_link'] = (string) strip_tags( $new_instance['show_link'] );
		return $instance;
	}

	function form( $instance ) {

		$instance = wp_parse_args( (array) $instance, array( 'width' => 200, 'height' => 150 ) );

		$tax_title = esc_attr( $instance['tax_title'] );
		$show_link = $instance['show_link'];
		?>

		<p>
			<label for="<?php echo $this->get_field_id('tax_title'); ?>">
				<?php _e('Extra Taxonomy Title:'); ?>
				<input class="widefat" id="<?php echo $this->get_field_id('tax_title'); ?>" name="<?php echo $this->get_field_name('tax_title'); ?>" type="text" value="<?php echo $tax_title; ?>" />
			</label>
		</p>
		<p>
			<label for="<?php echo $this->get_field_id('show_link'); ?>">
				<?php _e('Show links in terms:'); ?>
				<input id="<?php echo $this->get_field_id('show_link'); ?>" name="<?php echo $this->get_field_name('show_link'); ?>" type="checkbox"<?php echo $show_link ? ' checked="checked"' : '' ?> />
			</label>
		</p>

	<?php

	}

}

### Function: Init Table News Widget
add_action('widgets_init', 'widget_jh_portfolio_extra_taxonomy');
function widget_jh_portfolio_extra_taxonomy() {
	register_widget( 'WP_Widget_JH_Portfolio_Extra_Taxonomy' );
}
?>