[Error] 
Call to undefined method Bitrix\Main\DB\MysqliConnection::getMaxAllowedPacket() (0)
/var/www/u0457666/data/www/xn----8sbak7awtsb.com/bitrix/modules/mail/classes/mysql/mail.php:42
#0: CMailUtil::IsSizeAllowed(integer)
	/var/www/u0457666/data/www/xn----8sbak7awtsb.com/bitrix/modules/mail/classes/general/mail.php:1957
#1: CAllMailMessage::Add(array)
	/var/www/u0457666/data/www/xn----8sbak7awtsb.com/bitrix/modules/mail/classes/general/mail.php:1723
#2: CAllMailMessage::saveMessage(string, NULL, object, string, string, array, array)
	/var/www/u0457666/data/www/xn----8sbak7awtsb.com/bitrix/modules/mail/lib/helper/mailbox/imap.php:1534
#3: Bitrix\Mail\Helper\Mailbox\Imap->cacheMessage(array, array)
	/var/www/u0457666/data/www/xn----8sbak7awtsb.com/bitrix/modules/mail/lib/helper/mailbox/imap.php:1317
#4: Bitrix\Mail\Helper\Mailbox\Imap->syncMessage(string, string, array, array)
	/var/www/u0457666/data/www/xn----8sbak7awtsb.com/bitrix/modules/mail/lib/helper/mailbox/imap.php:713
#5: Bitrix\Mail\Helper\Mailbox\Imap->syncDir(string)
	/var/www/u0457666/data/www/xn----8sbak7awtsb.com/bitrix/modules/mail/lib/helper/mailbox/imap.php:621
#6: Bitrix\Mail\Helper\Mailbox\Imap->syncMailbox()
	/var/www/u0457666/data/www/xn----8sbak7awtsb.com/bitrix/modules/mail/lib/helper/mailbox/imap.php:76
#7: Bitrix\Mail\Helper\Mailbox\Imap->syncInternal()
	/var/www/u0457666/data/www/xn----8sbak7awtsb.com/bitrix/modules/mail/lib/helper/mailbox.php:229
#8: Bitrix\Mail\Helper\Mailbox->sync()
	/var/www/u0457666/data/www/xn----8sbak7awtsb.com/bitrix/modules/mail/lib/helper.php:26
#9: Bitrix\Mail\Helper::syncMailboxAgent(integer)
	/var/www/u0457666/data/www/xn----8sbak7awtsb.com/bitrix/modules/main/classes/mysql/agent.php(162) : eval()'d code:1
#10: eval
	/var/www/u0457666/data/www/xn----8sbak7awtsb.com/bitrix/modules/main/classes/mysql/agent.php:162
#11: CAgent::ExecuteAgents(string)
	/var/www/u0457666/data/www/xn----8sbak7awtsb.com/bitrix/modules/main/classes/mysql/agent.php:40
#12: CAgent::CheckAgents()
	/var/www/u0457666/data/www/xn----8sbak7awtsb.com/bitrix/modules/main/include.php:271
#13: require_once(string)
	/var/www/u0457666/data/www/xn----8sbak7awtsb.com/bitrix/modules/main/include/prolog_before.php:14
#14: require_once(string)
	/var/www/u0457666/data/www/xn----8sbak7awtsb.com/bitrix/modules/main/include/prolog.php:10
#15: require_once(string)
	/var/www/u0457666/data/www/xn----8sbak7awtsb.com/bitrix/header.php:1
#16: require(string)
	/var/www/u0457666/data/www/xn----8sbak7awtsb.com/personal/circulating-sheet/index.php:2