Fatal error: Cannot redeclare file_size() (previously declared in /var/www/vhosts/v-21984.webspace/www/unitedthermo.kz/bitrix/php_interface/init.php:149) in /var/www/vhosts/v-21984.webspace/www/unitedthermo.kz/bitrix/templates/unifiltri/components/bitrix/catalog.section/technology/result_modifier.php on line 34