[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [127.0.0.1:3310]: (2006) MySQL server has gone away (400)
/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/modules/main/lib/db/mysqliconnection.php:86
#0: Bitrix\Main\DB\MysqliConnection->connectInternal()
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/modules/main/lib/data/connection.php:53
#1: Bitrix\Main\Data\Connection->getResource()
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/modules/main/classes/general/database.php:305
#2: CAllDatabase->DoConnect()
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/modules/main/classes/general/database.php:703
#3: CAllDatabase->ForSql(string)
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/modules/main/classes/general/sqlwhere.php:758
#4: CAllSQLWhere->addStringFilter(array, boolean, string, string, string)
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/modules/main/classes/general/sqlwhere.php:401
#5: CAllSQLWhere->GetQueryEx(array, array)
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/modules/main/classes/general/sqlwhere.php:281
#6: CAllSQLWhere->GetQuery(array)
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/modules/main/lib/orm/query/query.php:2225
#7: Bitrix\Main\ORM\Query\Query->buildWhere()
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/modules/main/lib/orm/query/query.php:2463
#8: Bitrix\Main\ORM\Query\Query->buildQuery()
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/modules/main/lib/orm/query/query.php:933
#9: Bitrix\Main\ORM\Query\Query->exec()
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/modules/main/lib/orm/data/datamanager.php:513
#10: Bitrix\Main\ORM\Data\DataManager::getList(array)
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/modules/main/lib/site.php:145
#11: Bitrix\Main\SiteTable::getByDomain(string, string)
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/modules/main/lib/httpcontext.php:100
#12: Bitrix\Main\HttpContext->initializeCulture(NULL, NULL)
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/modules/main/include.php:36
#13: require_once(string)
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/modules/main/include/prolog_before.php:19
#14: require_once(string)
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/modules/main/include/prolog.php:10
#15: require_once(string)
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/header.php:1
#16: require(string)
	/var/www/visotatour/data/www/visotatour.ru/htdocs/ekskursii/index.php:3
#17: include_once(string)
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/modules/main/include/urlrewrite.php:184
#18: include_once(string)
	/var/www/visotatour/data/www/visotatour.ru/htdocs/bitrix/urlrewrite.php:2
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