DB query error. Please try later.

( ! ) Fatal error: Uncaught Bitrix\Main\DB\SqlQueryException: Mysql query error: (2006) MySQL server has gone away in /home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php on line 137
Call Stack
#	Time	Memory	Function	Location
1	0.0002	362208	{main}( )	.../urlrewrite.php:0
2	0.0002	363104	include_once( '/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php' )	.../urlrewrite.php:2
3	0.0009	384600	include_once( '/home/bitrix/www/catalog/index.php' )	.../urlrewrite.php:159
4	0.1326	5541368	CMain->IncludeComponent( )	.../index.php:233
5	0.1328	5554552	CBitrixComponent->includeComponent( )	.../main.php:1046
6	0.1332	5602024	W247CatalogsComponent->executeComponent( )	.../component.php:656
7	0.1616	5621672	W247CatalogsComponent->includeComponentTemplate( )	.../class.php:268
8	0.1617	5623168	W247CatalogsComponent->showComponentTemplate( )	.../component.php:712
9	0.1617	5623200	CBitrixComponentTemplate->IncludeTemplate( )	.../component.php:764
10	0.1618	5624192	CBitrixComponentTemplate->__IncludePHPTemplate( )	.../component_template.php:884
11	0.1618	5625696	include( '/home/bitrix/www/local/components/w247.catalogs/catalog/templates/.default/section.php' )	.../component_template.php:789
12	0.5373	5695632	CMain->IncludeComponent( )	.../section.php:2393
13	0.5377	5708064	CBitrixComponent->includeComponent( )	.../main.php:1046
14	0.5378	5714936	CBitrixCatalogSmartFilter->executeComponent( )	.../component.php:656
15	0.5394	5714864	CBitrixCatalogSmartFilter->executeComponent( )	.../class.php:138
16	0.5394	5714864	CBitrixCatalogSmartFilter->__includeComponent( )	.../component.php:103
17	0.5395	5726128	include( '/home/bitrix/www/bitrix/components/w247.catalogs/catalog.smart.filter/component.php' )	.../component.php:605
18	8.5723	244165128	CBitrixCatalogSmartFilter->fillItemValues( )	.../component.php:233
19	8.5723	244165664	CBitrixCatalogSmartFilter->predictIBElementFetch( )	.../class.php:689
20	8.5723	244166040	CIBlockElement::GetList( )	.../class.php:381
21	8.5728	244168872	CDatabase->Query( )	.../iblockelement.php:807
( ! ) Bitrix\Main\DB\SqlQueryException: Mysql query error: (2006) MySQL server has gone away in /home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php on line 137
Call Stack
#	Time	Memory	Function	Location
1	0.0002	362208	{main}( )	.../urlrewrite.php:0
2	0.0002	363104	include_once( '/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php' )	.../urlrewrite.php:2
3	0.0009	384600	include_once( '/home/bitrix/www/catalog/index.php' )	.../urlrewrite.php:159
4	0.1326	5541368	CMain->IncludeComponent( )	.../index.php:233
5	0.1328	5554552	CBitrixComponent->includeComponent( )	.../main.php:1046
6	0.1332	5602024	W247CatalogsComponent->executeComponent( )	.../component.php:656
7	0.1616	5621672	W247CatalogsComponent->includeComponentTemplate( )	.../class.php:268
8	0.1617	5623168	W247CatalogsComponent->showComponentTemplate( )	.../component.php:712
9	0.1617	5623200	CBitrixComponentTemplate->IncludeTemplate( )	.../component.php:764
10	0.1618	5624192	CBitrixComponentTemplate->__IncludePHPTemplate( )	.../component_template.php:884
11	0.1618	5625696	include( '/home/bitrix/www/local/components/w247.catalogs/catalog/templates/.default/section.php' )	.../component_template.php:789
12	0.5373	5695632	CMain->IncludeComponent( )	.../section.php:2393
13	0.5377	5708064	CBitrixComponent->includeComponent( )	.../main.php:1046
14	0.5378	5714936	CBitrixCatalogSmartFilter->executeComponent( )	.../component.php:656
15	0.5394	5714864	CBitrixCatalogSmartFilter->executeComponent( )	.../class.php:138
16	0.5394	5714864	CBitrixCatalogSmartFilter->__includeComponent( )	.../component.php:103
17	0.5395	5726128	include( '/home/bitrix/www/bitrix/components/w247.catalogs/catalog.smart.filter/component.php' )	.../component.php:605
18	8.5723	244165128	CBitrixCatalogSmartFilter->fillItemValues( )	.../component.php:233
19	8.5723	244165664	CBitrixCatalogSmartFilter->predictIBElementFetch( )	.../class.php:689
20	8.5723	244166040	CIBlockElement::GetList( )	.../class.php:381
21	8.5728	244168872	CDatabase->Query( )	.../iblockelement.php:807
22	8.5739	244265128	CAllMain::{closure:/home/bitrix/www/bitrix/modules/main/classes/general/main.php:3419-3426}( )	.../main.php:0
23	8.5740	244265152	ob_end_flush ( )	.../main.php:3424
24	8.5740	244265824	CMain->EndBufferContent( )	.../main.php:3424
25	8.5740	244266896	ExecuteModuleEventEx( )	.../main.php:3172
26	8.5740	244266200	Bitrix\Main\Analytics\Counter::onBeforeEndBufferContent( )	.../module.php:480
27	8.5742	244266344	Bitrix\Main\Analytics\SiteSpeed::isIntranetSite( )	.../counter.php:92
28	8.5742	244266344	Bitrix\Main\ORM\Data\DataManager::getList( )	.../sitespeed.php:95
29	8.5742	244267768	Bitrix\Main\ORM\Query\Query->exec( )	.../datamanager.php:500
30	8.5744	244271216	Bitrix\Main\ORM\Query\Query->query( )	.../query.php:825
31	8.5744	244271216	Bitrix\Main\DB\MysqliConnection->query( )	.../query.php:3357
32	8.5744	244271216	Bitrix\Main\DB\MysqliConnection->queryInternal( )	.../connection.php:330