Fatal error: Uncaught Error: Class 'HTMLPurifier_AttrDef' not found in /home/user2090261/www/spectexforma.by/parser/lib/Phpspreadsheet/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Filter.php:8 Stack trace: #0 {main} thrown in /home/user2090261/www/spectexforma.by/parser/lib/Phpspreadsheet/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Filter.php on line 8