[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
SELECT 
	`iblock_property`.`ID` AS `ID`,
	`iblock_property`.`TIMESTAMP_X` AS `TIMESTAMP_X`,
	`iblock_property`.`IBLOCK_ID` AS `IBLOCK_ID`,
	`iblock_property`.`NAME` AS `NAME`,
	`iblock_property`.`ACTIVE` AS `ACTIVE`,
	`iblock_property`.`SORT` AS `SORT`,
	`iblock_property`.`CODE` AS `CODE`,
	`iblock_property`.`DEFAULT_VALUE` AS `DEFAULT_VALUE`,
	`iblock_property`.`PROPERTY_TYPE` AS `PROPERTY_TYPE`,
	`iblock_property`.`ROW_COUNT` AS `ROW_COUNT`,
	`iblock_property`.`COL_COUNT` AS `COL_COUNT`,
	`iblock_property`.`LIST_TYPE` AS `LIST_TYPE`,
	`iblock_property`.`MULTIPLE` AS `MULTIPLE`,
	`iblock_property`.`XML_ID` AS `XML_ID`,
	`iblock_property`.`FILE_TYPE` AS `FILE_TYPE`,
	`iblock_property`.`MULTIPLE_CNT` AS `MULTIPLE_CNT`,
	`iblock_property`.`TMP_ID` AS `TMP_ID`,
	`iblock_property`.`LINK_IBLOCK_ID` AS `LINK_IBLOCK_ID`,
	`iblock_property`.`WITH_DESCRIPTION` AS `WITH_DESCRIPTION`,
	`iblock_property`.`SEARCHABLE` AS `SEARCHABLE`,
	`iblock_property`.`FILTRABLE` AS `FILTRABLE`,
	`iblock_property`.`IS_REQUIRED` AS `IS_REQUIRED`,
	`iblock_property`.`VERSION` AS `VERSION`,
	`iblock_property`.`USER_TYPE` AS `USER_TYPE`,
	`iblock_property`.`USER_TYPE_SETTINGS` AS `USER_TYPE_SETTINGS_LIST`,
	`iblock_property`.`USER_TYPE_SETTINGS` AS `USER_TYPE_SETTINGS`,
	`iblock_property`.`HINT` AS `HINT`
FROM `b_iblock_property` `iblock_property` 

WHERE `iblock_property`.`ID` = 359
LIMIT 0, 1

/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:149
#0: Bitrix\Main\DB\MysqliConnection->queryInternal
	/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:331
#1: Bitrix\Main\DB\Connection->query
	/home/bitrix/www/bitrix/modules/main/lib/orm/query/query.php:3557
#2: Bitrix\Main\ORM\Query\Query->query
	/home/bitrix/www/bitrix/modules/main/lib/orm/query/query.php:952
#3: Bitrix\Main\ORM\Query\Query->exec
	/home/bitrix/www/bitrix/modules/main/lib/orm/data/datamanager.php:513
#4: Bitrix\Main\ORM\Data\DataManager::getList
	/home/bitrix/www/bitrix/modules/iblock/classes/general/iblockproperty.php:742
#5: CAllIBlockProperty::GetByID
	/home/bitrix/www/bitrix/components/bitrix/catalog.smart.filter/class.php:169
#6: CBitrixCatalogSmartFilter->getIBlockItems
	/home/bitrix/www/bitrix/components/bitrix/catalog.smart.filter/class.php:279
#7: CBitrixCatalogSmartFilter->getResultItems
	/home/bitrix/www/bitrix/components/bitrix/catalog.smart.filter/component.php:39
#8: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:615
#9: CBitrixComponent->__includeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:105
#10: CBitrixComponent->executeComponent
	/home/bitrix/www/bitrix/components/bitrix/catalog.smart.filter/class.php:149
#11: CBitrixCatalogSmartFilter->executeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:668
#12: CBitrixComponent->includeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1195
#13: CAllMain->IncludeComponent
	/home/bitrix/www/bitrix/templates/academ-new/components/bitrix/catalog/main_ctweb/filter.php:35
#14: include_once(string)
	/home/bitrix/www/bitrix/templates/academ-new/components/bitrix/catalog/main_ctweb/section.php:129
#15: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:790
#16: CBitrixComponentTemplate->__IncludePHPTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:885
#17: CBitrixComponentTemplate->IncludeTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:784
#18: CBitrixComponent->showComponentTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:724
#19: CBitrixComponent->includeComponentTemplate
	/home/bitrix/www/bitrix/components/bitrix/catalog/component.php:323
#20: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:615
#21: CBitrixComponent->__includeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:692
#22: CBitrixComponent->includeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1195
#23: CAllMain->IncludeComponent
	/home/bitrix/www/catalog/index.php:2
#24: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:184
#25: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2
----------

Query Error: SELECT BS.ID AS ID, BS.IBLOCK_ID AS IBLOCK_ID, BS.IBLOCK_SECTION_ID AS IBLOCK_SECTION_ID, B.SECTION_PAGE_URL AS SECTION_PAGE_URL, BS.CODE AS CODE, BS.XML_ID AS EXTERNAL_ID, B.IBLOCK_TYPE_ID AS IBLOCK_TYPE_ID, B.CODE AS IBLOCK_CODE, B.XML_ID AS IBLOCK_EXTERNAL_ID, BS.GLOBAL_ACTIVE AS GLOBAL_ACTIVE FROM b_iblock_section BS INNER JOIN b_iblock B ON B.ID = BS.IBLOCK_ID WHERE BS.ID=181 [[2006] MySQL server has gone away]
Query Error!