Fatal error: Uncaught Error: Class 'Sabberworm\CSS\Parsing\ParserState' not found in /var/www/html/bg_wp/bg-master/plugins/amp/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Parser.php:26 Stack trace: #0 /var/www/html/bg_wp/bg-master/plugins/amp/includes/sanitizers/class-amp-style-sanitizer.php(1358): Sabberworm\CSS\Parser->__construct(':root:not(#_):n...', Object(Sabberworm\CSS\Settings)) #1 /var/www/html/bg_wp/bg-master/plugins/amp/includes/sanitizers/class-amp-style-sanitizer.php(1444): AMP_Style_Sanitizer->parse_stylesheet(':root:not(#_):n...', Array) #2 /var/www/html/bg_wp/bg-master/plugins/amp/includes/sanitizers/class-amp-style-sanitizer.php(1199): AMP_Style_Sanitizer->prepare_stylesheet(':root:not(#_):n...', Array) #3 /var/www/html/bg_wp/bg-master/plugins/amp/includes/sanitizers/class-amp-style-sanitizer.php(2230): AMP_Style_Sanitizer->process_stylesheet(':root:not(#_):n...', Array) #4 /var/www/html/bg_wp/bg-master/plugins/amp/includes/sanitizers/class-amp-style-sanitizer.php(739): AMP_Style_Sanitizer->collec in /var/www/html/bg_wp/bg-master/plugins/amp/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Parser.php on line 26