[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [localhost]: (2006) MySQL server has gone away (400)
/var/www/jcenter/bitrix/modules/main/lib/db/mysqliconnection.php:65
#0: Bitrix\Main\DB\MysqliConnection->connectInternal()
	/var/www/jcenter/bitrix/modules/main/lib/db/mysqliconnection.php:122
#1: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
	/var/www/jcenter/bitrix/modules/main/lib/db/connection.php:330
#2: Bitrix\Main\DB\Connection->query(string)
	/var/www/jcenter/bitrix/modules/main/lib/orm/query/query.php:3193
#3: Bitrix\Main\ORM\Query\Query->query(string)
	/var/www/jcenter/bitrix/modules/main/lib/orm/query/query.php:806
#4: Bitrix\Main\ORM\Query\Query->exec()
	/var/www/jcenter/bitrix/modules/main/lib/orm/data/datamanager.php:467
#5: Bitrix\Main\ORM\Data\DataManager::getList(array)
	/var/www/jcenter/bitrix/modules/iblock/classes/general/iblockpropresult.php:258
#6: CIBlockPropertyResult->setIBlock(integer, array)
	/var/www/jcenter/bitrix/modules/iblock/classes/general/iblockelement.php:5386
#7: CAllIBlockElement::GetPropertyValues(integer, array, boolean, array)
	/var/www/jcenter/local/php_interface/init.php:216
#8: getJournalLanguages(string)
	/var/www/jcenter/local/templates/jcenter/header.php:7
#9: include_once(string)
	/var/www/jcenter/bitrix/modules/main/include/prolog_after.php:106
#10: require(string)
	/var/www/jcenter/bitrix/modules/main/include/prolog.php:11
#11: require_once(string)
	/var/www/jcenter/bitrix/header.php:1
#12: require(string)
	/var/www/jfrm/issues/article.php:1
#13: include_once(string)
	/var/www/jcenter/bitrix/modules/main/include/urlrewrite.php:159
#14: include_once(string)
	/var/www/jcenter/bitrix/urlrewrite.php:2