My website sashatamarin.com, has crashed this morning (all of a sudden) and displays the following error.
I thought that maybe you're familiar with this issue?
I'm running a pretty old LayTheme version, but it worked just fine until today.

Thanks in advance,

The error:

visual editor to resemble the theme style, * specifically font, colors, icons, and column width. */ require_once get_template_directory().'/assets/mobile_detect/Mobile_Detect.php'; $lay_mobile_detect = new Mobile_Detect; require get_template_directory().'/setup/setup.php'; require get_template_directory().'/projectdescription/projectdescription.php'; require get_template_directory().'/gridder/assets/markup/addproject_modal.php'; require get_template_directory().'/gridder/gridder.php'; require get_template_directory().'/gridder/category-gridder.php'; require get_template_directory().'/gridder/thumbnailgrid.php'; require get_template_directory().'/formatsmanager/formatsmanager.php'; require get_template_directory().'/fontmanager/fontmanager.php'; require get_template_directory().'/frontend/media_query_css.php'; require get_template_directory().'/frontend/frontend.php'; require get_template_directory().'/customizer/css_output.php'; require get_template_directory().'/customizer/customizer.php'; require get_template_directory().'/intro/intro.php'; require get_template_directory().'/options/misc_options.php'; require get_template_directory().'/options/gridder_options.php'; require get_template_directory().'/options/css_html_options.php'; require get_template_directory().'/options/footer_options.php'; require get_template_directory().'/options/footer_options_individual_select_metaboxes.php'; if( ! class_exists( 'LayLicenseKey' ) ){ // just checking, because ppl might have activated laygridder plugin which has the same class atm require get_template_directory().'/options/license_key.php'; } require get_template_directory().'/options/cover_options.php'; require get_template_directory().'/options/cover_options_individual_metaboxes.php'; require get_template_directory().'/thumbnails/image_mouseover_thumbnails.php'; require get_template_directory().'/thumbnails/video_thumbnails.php'; require get_template_directory().'/thumbnails/update_thumbnails.php'; require get_template_directory().'/thumbnails/update_imagelinks.php'; require get_template_directory().'/frontend/shortcodes.php'; add_action('after_setup_theme', 'laytheme_load_plugins'); function laytheme_load_plugins(){ if ( ! class_exists( 'WP_REST_Controller' ) ) { include_once(get_template_directory().'/assets/plugins/rest-api/plugin.php'); } if(is_admin()){ if(!function_exists('m4c_duplicate_post_scripts')){ include_once(get_template_directory().'/assets/plugins/post-duplicator/m4c-postduplicator.php'); } if(!function_exists('rfi_return_post_types')){ include_once(get_template_directory().'/assets/plugins/require-featured-image-and-title/require-featured-image-and-title.php'); } if(!class_exists('SCPO_Engine')){ include_once(get_template_directory().'/assets/plugins/simple-custom-post-order/simple-custom-post-order.php'); } if(!class_exists('Radio_Buttons_for_Taxonomies')){ include_once(get_template_directory().'/assets/plugins/radio-buttons-for-taxonomies/radio-buttons-for-taxonomies.php'); } } } require 'theme_update_check.php'; $MyUpdateChecker = new ThemeUpdateChecker( 'lay', 'https://kernl.us/api/v1/theme-updates/56a0b3327ba9bc01527df76c/' );