Elementor\Posts_CSS_Manager::clear_cache PHP Method

    public function clear_cache()
    {
        $errors = [];
        // Delete post meta
        global $wpdb;
        $deleted = $wpdb->delete($wpdb->postmeta, ['meta_key' => Post_CSS_File::META_KEY_CSS]);
        if (false === $deleted) {
            $errors['db'] = __('Cannot delete DB cache', 'elementor');
        }
        // Delete files
        $wp_upload_dir = wp_upload_dir(null, false);
        $path = sprintf('%s%s%s%s*', $wp_upload_dir['basedir'], Post_CSS_File::FILE_BASE_DIR, '/', Post_CSS_File::FILE_PREFIX);
        foreach (glob($path) as $file) {
            $deleted = unlink($file);
            if (!$deleted) {
                $errors['files'] = __('Cannot delete files cache', 'elementor');
            }
        }
        return $errors;
    }