Fatal error: Uncaught Error: Call to undefined function Bitrix\Main\IO\mb_substr() in /var/www/vhosts/megavend.ru/httpdocs/bitrix/modules/main/lib/io/path.php:77 Stack trace: #0 /var/www/vhosts/megavend.ru/httpdocs/bitrix/modules/main/lib/localization/loc.php(70): Bitrix\Main\IO\Path::normalize() #1 /var/www/vhosts/megavend.ru/httpdocs/bitrix/modules/main/lib/orm/fields/validators/validator.php(15): Bitrix\Main\Localization\Loc::loadMessages() #2 /var/www/vhosts/megavend.ru/httpdocs/bitrix/modules/main/lib/loader.php(436): require_once('...') #3 [internal function]: Bitrix\Main\Loader::autoLoad() #4 /var/www/vhosts/megavend.ru/httpdocs/bitrix/modules/main/include/compatibility.php(30): class_alias() #5 /var/www/vhosts/megavend.ru/httpdocs/bitrix/modules/main/include/autoload.php(189): require_once('...') #6 /var/www/vhosts/megavend.ru/httpdocs/bitrix/modules/main/include/urlrewrite.php(9): require_once('...') #7 /var/www/vhosts/megavend.ru/httpdocs/bitrix/urlrewrite.php(2): include_once('...') #8 {main} thrown in /var/www/vhosts/megavend.ru/httpdocs/bitrix/modules/main/lib/io/path.php on line 77