[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [localhost]: (2006) MySQL server has gone away (400)
/var/www/www-root/data/www/amarket.online/bitrix/modules/main/lib/db/mysqliconnection.php:82
#0: Bitrix\Main\DB\MysqliConnection->connectInternal()
	/var/www/www-root/data/www/amarket.online/bitrix/modules/main/lib/data/connection.php:53
#1: Bitrix\Main\Data\Connection->getResource()
	/var/www/www-root/data/www/amarket.online/bitrix/modules/main/classes/general/database.php:283
#2: CAllDatabase->DoConnect()
	/var/www/www-root/data/www/amarket.online/bitrix/modules/main/classes/mysql/database_mysqli.php:85
#3: CDatabase->ForSqlLike(string, integer)
	/var/www/www-root/data/www/amarket.online/bitrix/modules/main/classes/general/filterquery.php:287
#4: CFilterQuery->BuildWhereClause(string)
	/var/www/www-root/data/www/amarket.online/bitrix/modules/main/classes/general/filterquery.php:227
#5: CAllFilterQuery->PrepareQuery(string)
	/var/www/www-root/data/www/amarket.online/bitrix/modules/main/classes/general/filterquery.php:65
#6: CAllFilterQuery->GetQueryString(string, string)
	/var/www/www-root/data/www/amarket.online/bitrix/modules/main/filter_tools.php:371
#7: GetFilterQuery(string, string)
	/var/www/www-root/data/www/amarket.online/bitrix/modules/sotbit.mailing/classes/mysql/CSotbitMailingEvent.php:117
#8: CSotbitMailingEvent::GetList(array, array, boolean, array)
	/var/www/www-root/data/www/amarket.online/bitrix/modules/sotbit.mailing/classes/general/CSotbitMailingHelp.php:1540
#9: CSotbitMailingHelp::OnPageStart()
	/var/www/www-root/data/www/amarket.online/bitrix/modules/main/classes/general/module.php:480
#10: ExecuteModuleEventEx(array)
	/var/www/www-root/data/www/amarket.online/bitrix/modules/main/include.php:173
#11: require_once(string)
	/var/www/www-root/data/www/amarket.online/bitrix/modules/main/include/prolog_before.php:14
#12: require_once(string)
	/var/www/www-root/data/www/amarket.online/bitrix/modules/main/include/prolog.php:10
#13: require_once(string)
	/var/www/www-root/data/www/amarket.online/bitrix/header.php:1
#14: require(string)
	/var/www/www-root/data/www/amarket.online/catalog/index.php:7
#15: include_once(string)
	/var/www/www-root/data/www/amarket.online/bitrix/modules/main/include/urlrewrite.php:174
#16: include_once(string)
	/var/www/www-root/data/www/amarket.online/bitrix/urlrewrite.php:2
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