Website not loading after Enfold Theme Update

Hi,

I am encountering an issue after updating enfold to the latest version on the home page:

Fatal error: Uncaught Error: Class “DOMDocument” not found in /home/beautyof/public_html/wp-content/themes/beautyofaction-4/config-layerslider/LayerSlider/assets/classes/class.ls.dom.php:19 Stack trace: #0 /home/beautyof/public_html/wp-content/themes/beautyofaction-4/config-layerslider/LayerSlider/assets/classes/class.ls.dom.php(48): LayerSlider\DOM->__construct() #1 /home/beautyof/public_html/wp-content/themes/beautyofaction-4/config-layerslider/LayerSlider/assets/includes/slider_markup_html.php(674): LayerSlider\DOM::newDocumentHTML() #2 /home/beautyof/public_html/wp-content/themes/beautyofaction-4/config-layerslider/LayerSlider/assets/wp/shortcodes.php(384): include(‘/home/beautyof/…’) #3 /home/beautyof/public_html/wp-content/themes/beautyofaction-4/config-layerslider/LayerSlider/assets/wp/shortcodes.php(279): LS_Shortcode::generateSliderMarkup() #4 /home/beautyof/public_html/wp-content/themes/beautyofaction-4/config-layerslider/LayerSlider/assets/wp/shortcodes.php(86): LS_Shortcode::processShortcode() #5 /home/beautyof/public_html/wp-content/themes/beautyofaction-4/config-templatebuilder/avia-shortcodes/slideshow_layerslider/slideshow_layerslider.php(193): LS_Shortcode::handleShortcode() #6 /home/beautyof/public_html/wp-content/themes/beautyofaction-4/config-templatebuilder/avia-template-builder/php/class-shortcode-template.php(1329): avia_sc_layerslider->shortcode_handler() #7 /home/beautyof/public_html/wp-includes/shortcodes.php(434): aviaShortcodeTemplate->shortcode_handler_prepare() #8 [internal function]: do_shortcode_tag() #9 /home/beautyof/public_html/wp-includes/shortcodes.php(273): preg_replace_callback() #10 /home/beautyof/public_html/wp-includes/class-wp-hook.php(324): do_shortcode() #11 /home/beautyof/public_html/wp-includes/plugin.php(205): WP_Hook->apply_filters() #12 /home/beautyof/public_html/wp-content/themes/beautyofaction-4/template-builder.php(102): apply_filters() #13 /home/beautyof/public_html/wp-includes/template-loader.php(106): include(‘/home/beautyof/…’) #14 /home/beautyof/public_html/wp-blog-header.php(19): require_once(‘/home/beautyof/…’) #15 /home/beautyof/public_html/index.php(17): require(‘/home/beautyof/…’) #16 {main} thrown in /home/beautyof/public_html/wp-content/themes/beautyofaction-4/config-layerslider/LayerSlider/assets/classes/class.ls.dom.php on line 19

Could you please advise how to solve the issue?

Regards
David