[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [localhost]: (2006) MySQL server has gone away (400)
/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:82
#0: Bitrix\Main\DB\MysqliConnection->connectInternal()
	/home/bitrix/www/bitrix/modules/main/lib/data/connection.php:53
#1: Bitrix\Main\Data\Connection->getResource()
	/home/bitrix/www/bitrix/modules/main/lib/db/mysqlisqlhelper.php:21
#2: Bitrix\Main\DB\MysqliSqlHelper->forSql(string)
	/home/bitrix/www/bitrix/modules/main/lib/config/option.php:206
#3: Bitrix\Main\Config\Option::load(string)
	/home/bitrix/www/bitrix/modules/main/lib/config/option.php:83
#4: Bitrix\Main\Config\Option::getRealValue(string, string, boolean)
	/home/bitrix/www/bitrix/modules/main/lib/config/option.php:32
#5: Bitrix\Main\Config\Option::get(string, string, string)
	/home/bitrix/www/bitrix/modules/maxyss.ozon/include.php:67
#6: include_once(string)
	/home/bitrix/www/bitrix/modules/main/lib/loader.php:184
#7: Bitrix\Main\Loader::includeModuleInternal(string)
	/home/bitrix/www/bitrix/modules/main/lib/loader.php:140
#8: Bitrix\Main\Loader::includeModule(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/module.php:251
#9: CModule::IncludeModule(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/module.php:434
#10: ExecuteModuleEventEx(array)
	/home/bitrix/www/bitrix/modules/main/include.php:173
#11: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:14
#12: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog.php:10
#13: require_once(string)
	/home/bitrix/www/bitrix/header.php:1
#14: require(string)
	/home/bitrix/www/catalog/index.php:2
#15: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:174
#16: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2
----------