[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
DELETE FROM `b_user_session` WHERE `SESSION_ID` = '58R1TEmuo1e49tIoPn2jA6Bg5kYsnWQ3'
/app/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
	/app/bitrix/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query(string, NULL)
	/app/bitrix/modules/main/lib/db/connection.php:379
#2: Bitrix\Main\DB\Connection->queryExecute(string)
	/app/bitrix/modules/main/lib/orm/data/datamanager.php:1624
#3: Bitrix\Main\ORM\Data\DataManager::delete(array)
	/app/bitrix/modules/main/lib/session/handlers/databasesessionhandler.php:60
#4: Bitrix\Main\Session\Handlers\DatabaseSessionHandler->processDestroy(string)
	/app/bitrix/modules/main/lib/session/handlers/databasesessionhandler.php:38
#5: Bitrix\Main\Session\Handlers\DatabaseSessionHandler->processWrite(string, string)
	/app/bitrix/modules/main/lib/session/handlers/abstractsessionhandler.php:79
#6: Bitrix\Main\Session\Handlers\AbstractSessionHandler->write(string, string)
	
#7: session_write_close()
	/app/bitrix/modules/main/lib/session/legacy/healerearlysessionstart.php:15
#8: Bitrix\Main\Session\Legacy\HealerEarlySessionStart->process(object)
	/app/bitrix/modules/main/include.php:177
#9: require_once(string)
	/app/bitrix/modules/main/include/prolog_before.php:14
#10: require_once(string)
	/app/bitrix/modules/main/include/prolog.php:10
#11: require_once(string)
	/app/bitrix/header.php:1
#12: require(string)
	/app/catalog/index.php:4
#13: include_once(string)
	/app/local/include/urlrewrite.php:177
#14: include_once(string)
	/app/local/include/custom_urlrewrite.php:3