Fatal error: Uncaught Error: Class "PHPExcel_Writer_HTML" not found in /home/bitrix/www/contest-pps/phpExcel_8/Classes/PHPExcel/Writer/PDF/Core.php:28
Stack trace:
#0 {main}
thrown in /home/bitrix/www/contest-pps/phpExcel_8/Classes/PHPExcel/Writer/PDF/Core.php on line 28