[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
SELECT ID FROM b_module ORDER BY ID
/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal
	/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query
	/home/bitrix/www/bitrix/modules/main/lib/modulemanager.php:20
#2: Bitrix\Main\ModuleManager::getInstalledModules
	/home/bitrix/www/bitrix/modules/main/lib/modulemanager.php:63
#3: Bitrix\Main\ModuleManager::isModuleInstalled
	/home/bitrix/www/bitrix/modules/main/classes/general/module.php:502
#4: IsModuleInstalled
	/home/bitrix/www/bitrix/modules/main/jscore.php:68
#5: require_once(string)
	/home/bitrix/www/bitrix/modules/main/tools.php:5129
#6: CJSCore::_RegisterStandardExt
	/home/bitrix/www/bitrix/modules/main/tools.php:4602
#7: CJSCore::Init
	/home/bitrix/www/bitrix/php_interface/init.php:2
#8: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include.php:241
#9: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:15
#10: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog.php:10
#11: require_once(string)
	/home/bitrix/www/bitrix/header.php:1
#12: require(string)
	/home/bitrix/www/brands/index.php:2
#13: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:159
#14: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2