[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
DELETE FROM b_composite_page WHERE ID IN (2591238,2591239,2591240,2591241,2591242,2591243,2591244,2591245,2591246,2591247,2591248,2591249,2591250,2591251,2591252,2591253,2591254,2591255,2591256,2591257,2591258,2591259,2591260,2591261,2591262,2591263,2591264,2591265,2591266,2591267,2591268,2591269,2591270,2591271,2591272,2591273,2591274,2591275,2591276,2591277,2591278,2591279,2591280,2591281,2591282,2591283,2591284,2591285,2591286,2591287,2591288,2591289,2591290,2591291,2591292,2591293,2591294,2591295,2591296,2591297,2591298,2591299,2591300,2591301,2591302,2591303,2591304,2591305,2591306,2591307,2591308,2591309,2591310,2591311,2591312,2591313,2591314,2591315,2591316,2591317,2591318,2591319,2591320,2591322,2591323,2591324,2591325,2591326,2591327,2591328,2591329,2591330,2591331,2591332,2591333,2591334,2591335,2591336,2591337,2591338)
/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
	/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:329
#1: Bitrix\Main\DB\Connection->query(string, NULL)
	/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:378
#2: Bitrix\Main\DB\Connection->queryExecute(string)
	/home/bitrix/www/bitrix/modules/main/lib/composite/internals/model/page.php:186
#3: Bitrix\Main\Composite\Internals\Model\PageTable::deleteBatch(array)
	/home/bitrix/www/bitrix/modules/main/lib/composite/engine.php:834
#4: Bitrix\Main\Composite\Engine::ensureFileQuota(integer)
	/home/bitrix/www/bitrix/modules/main/lib/composite/engine.php:483
#5: Bitrix\Main\Composite\Engine::processPageContent(string)
	/home/bitrix/www/bitrix/modules/main/lib/composite/engine.php:420
#6: Bitrix\Main\Composite\Engine::endBuffering(string, string)
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:3267
#7: CAllMain->EndBufferContent(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:3211
#8: CAllMain->EndBufferContentMan()
	/home/bitrix/www/bitrix/modules/main/include/epilog_after.php:36
#9: require(string)
	/home/bitrix/www/bitrix/modules/main/include/epilog.php:3
#10: require_once(string)
	/home/bitrix/www/bitrix/footer.php:4
#11: require(string)
	/home/bitrix/www/groups/group.php:160
#12: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:159
#13: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2