[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
DELETE FROM b_composite_page WHERE ID IN (22897355,22897356,22897357,22897358,22897359,22897360,22897361,22897362,22897363,22897364,22897365,22897366,22897367,22897368,22897369,22897370,22897371,22897372,22897373,22897374,22897375,22897376,22897377,22897378,22897379,22897380,22897381,22897382,22897385,22897383,22897384,22897386,22897387,22897388,22897389,22897390,22897391,22897392,22897393,22897394,22897395,22897396,22897397,22897398,22897399,22897400,22897401,22897402,22897403,22897404,22897405,22897406,22897407,22897408,22897409,22897410,22897411,22897412,22897413,22897414,22897415,22897416,22897417,22897418,22897419,22859732,22897420,22897421,22897422,22897423,22897424,22897425,22897426,22897427,22897428,22897430,22897431,22897432,22897433,22897434,22897435,22897436,22897437,22897438,22897439,22897440,22897441,22897442,22897443,22897444,22854046,22897445,22897446,22897447,22897448,22897449,22897450,22897451,22897452,22897453)
/home/bitrix/ext_www/bookbars.ru/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
	/home/bitrix/ext_www/bookbars.ru/bitrix/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query(string, NULL)
	/home/bitrix/ext_www/bookbars.ru/bitrix/modules/main/lib/db/connection.php:379
#2: Bitrix\Main\DB\Connection->queryExecute(string)
	/home/bitrix/ext_www/bookbars.ru/bitrix/modules/main/lib/composite/internals/model/page.php:186
#3: Bitrix\Main\Composite\Internals\Model\PageTable::deleteBatch(array)
	/home/bitrix/ext_www/bookbars.ru/bitrix/modules/main/lib/composite/engine.php:834
#4: Bitrix\Main\Composite\Engine::ensureFileQuota(integer)
	/home/bitrix/ext_www/bookbars.ru/bitrix/modules/main/lib/composite/engine.php:483
#5: Bitrix\Main\Composite\Engine::processPageContent(string)
	/home/bitrix/ext_www/bookbars.ru/bitrix/modules/main/lib/composite/engine.php:420
#6: Bitrix\Main\Composite\Engine::endBuffering(string, string)
	/home/bitrix/ext_www/bookbars.ru/bitrix/modules/main/classes/general/main.php:3194
#7: CAllMain->EndBufferContent(string)
	/home/bitrix/ext_www/bookbars.ru/bitrix/modules/main/classes/general/main.php:3138
#8: CAllMain->EndBufferContentMan()
	/home/bitrix/ext_www/bookbars.ru/bitrix/modules/main/include/epilog_after.php:36
#9: require(string)
	/home/bitrix/ext_www/bookbars.ru/bitrix/modules/main/include/epilog.php:3
#10: require_once(string)
	/home/bitrix/ext_www/bookbars.ru/bitrix/footer.php:4
#11: require(string)
	/home/bitrix/ext_www/bookbars.ru/catalog/index.php:333
#12: include_once(string)
	/home/bitrix/ext_www/bookbars.ru/bitrix/modules/main/include/urlrewrite.php:159
#13: include_once(string)
	/home/bitrix/ext_www/bookbars.ru/bitrix/urlrewrite.php:2