Minor problem with sidebar, now Fatal Error

'<?php
  global $theme_sidebars;
  $theme_sidebars = array(

   'default' => array(
      'name' => __('Primary Widget Area',THEME_NS),
      'id' => 'primary-widget-area',
      'description' => __("This is the default sidebar, visible on 2 or 3 column layouts. If no widgets are active, the default theme widgets will be displayed instead.", THEME_NS)
    ),

    'secondary' =>  array(
      'name' => __('Secondary Widget Area',THEME_NS),
      'id' => 'secondary-widget-area',
      'description' => __("This sidebar is active only on a 3 column setup.", THEME_NS)
    ),

    'top' => array(
      'name' => __('First Top Widget Area',THEME_NS),
      'id' => 'first-top-widget-area',
      'description' => __("This sidebar is displayed above the main content.", THEME_NS)
    ),

    'top2' => array(
      'name' => __('Second Top Widget Area',THEME_NS),
      'id' => 'second-top-widget-area',
      'description' => __("This sidebar is displayed above the main content.", THEME_NS)
    ),

    'bottom' => array(
      'name' => __('First Bottom Widget Area',THEME_NS),
      'id' => 'first-bottom-widget-area',
      'description' => __("This sidebar is displayed below the main content.", THEME_NS)
    ),

    'bottom2' => array(
      'name' => __('Second Bottom Widget Area',THEME_NS),
      'id' => 'second-bottom-widget-area',
      'description' => __("This sidebar is displayed below the main content.", THEME_NS)
    ),

    'footer' => array(
      'name' => __('First Footer Widget Area',THEME_NS),
      'id' => 'first-footer-widget-area',
      'description' => __("The first footer widget area. You can add a text widget for custom footer text.", THEME_NS)
    ),

    'footer2' => array(
      'name' => __('Second Footer Widget Area',THEME_NS),
      'id' => 'second-footer-widget-area',
      'description' => __("The second footer widget area.", THEME_NS)
    ),

    'footer3' => array(
      'name' => __('Third Footer Widget Area',THEME_NS),
      'id' => 'third-footer-widget-area',
      'description' => __("The third footer widget area.", THEME_NS)
    ),

    'footer4' => array(
      'name' => __('Fourth Footer Widget Area',THEME_NS),
      'id' => 'fourth-footer-widget-area',
      'description' => __("The fourth footer widget area.", THEME_NS)
    ),

  );

global $theme_widget_args;

if (function_exists('register_sidebar')) {

	$theme_widget_args = array(
		'before_widget' => '<widget id="%1$s" name="%1$s" class="widget %2$s">',
		'before_title' => '<title>',
		'after_title' => '</title>',
		'after_widget' => '</widget>'
		);

	foreach ($theme_sidebars as $sidebar) {
		register_sidebar( array_merge($sidebar, $theme_widget_args));
    }
}

function theme_get_dynamic_sidebar_data($name) {
	global $theme_widget_args, $theme_sidebars;
	if (!function_exists('dynamic_sidebar')) return false;
	ob_start();
	$success = dynamic_sidebar($theme_sidebars[$name]['id']);
	$content = ob_get_clean();
	if (!$success) return false;
	extract($theme_widget_args);
	$data = explode($after_widget, $content);
	$widgets = array();
  $heading = theme_get_option('theme_'.(is_single()?'single':'posts').'_widget_title_tag');
	for($i = 0; $i < count($data); $i++) {
		$widget = $data[$i];
		if(theme_is_empty_html($widget)) continue;

		$id = null;
		$name = null;
		$class = null;
		$title = null;

		if (preg_match('/<widget(.*?)>/', $widget, $matches)) {
			if(preg_match('/id="(.*?)"/', $matches[1], $ids)) {
				$id = $ids[1];
			}
			if(preg_match('/name="(.*?)"/', $matches[1], $names)) {
				$name = $names[1];
			}
			if(preg_match('/class="(.*?)"/', $matches[1], $classes)) {
				$class = $classes[1];
			}
			$widget = preg_replace('/<widget[^>]+>/', '', $widget);

			if (preg_match('/<title>(.*)<\/title>/', $widget, $matches)) {
				$title = $matches[1];
				$widget = preg_replace('/<title>.*?<\/title>/', '', $widget);
			}
		}

		$widgets[] = array(
		  'id' => $id,
		  'name' => $name,
		  'class' => $class,
		  'title' => $title,
		  'heading' => $heading,
		  'content' => $widget
		);
	}
    return $widgets;
}

function theme_print_widgets($widgets, $style){
	if (!is_array($widgets) || count($widgets) < 1) return false;
	for($i = 0; $i < count($widgets); $i++){
		$widget = $widgets[$i];
		if ($widget['name']) {
			$widget_style = theme_get_widget_style($widget['name'], $style);
			theme_wrapper($widget_style, $widget);
		} else {
			echo $widget['content'];
		}
	}
	return true;
}

function theme_dynamic_sidebar($name){
	global $theme_sidebars;
    $style = theme_get_option('theme_sidebars_style_'.$name);
    if (in_array($name, array('default', 'secondary'))) {
		    $widgets = theme_get_dynamic_sidebar_data($name);
			return theme_print_widgets($widgets, $style);
	}
    $places = array();
    $sum_count = 0;
    foreach ($theme_sidebars as $key => $sidebar)
    {
		if (strpos($key, $name) !== false){
		$widgets = theme_get_dynamic_sidebar_data($key);
			if (is_array($widgets)){
				$count = count($widgets);
				if ($count > 0){
					$sum_count += $count;
					$places[$key] = $widgets;
				}
			}
		}
    }
    if ($sum_count == 0) {
    	return false;
    }
	?>
<div class="art-content-layout">
    <div class="art-content-layout-row">
		<?php
		$place_count = count($places);
        foreach ($places as $place)
        {
			?>
			<div class="art-layout-cell art-layout-cell-size<?php echo $place_count; ?>">
			<?php if($name == 'footer'): ?>
				<div class="art-center-wrapper">
				<div class="art-center-inner">
			<?php endif; ?>
			<?php
            theme_print_widgets($place, $style);
			?>
			<?php if($name == 'footer'): ?>
				</div>
				</div>
			<?php endif; ?>
				<div class="cleared"> </div>
			</div>
			<?php
        }
		?>
    </div>
</div>
	<?php
    return true;
}
 '