[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
INSERT INTO `b_sec_session`(`TIMESTAMP_X`, `SESSION_DATA`, `SESSION_ID`) VALUES ('2025-05-25 20:10:54', '', 'B3SWUZIF1CjWtnitVuMkGzh5ngbV7hyh')
/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
	/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query(string, NULL)
	/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:379
#2: Bitrix\Main\DB\Connection->queryExecute(string)
	/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:454
#3: Bitrix\Main\DB\Connection->add(string, array, NULL)
	/home/bitrix/www/bitrix/modules/main/lib/orm/data/datamanager.php:924
#4: Bitrix\Main\ORM\Data\DataManager::add(array)
	/home/bitrix/www/bitrix/modules/security/classes/general/session_db.php:104
#5: CSecuritySessionDB::write(string, string)
	/home/bitrix/www/bitrix/modules/security/classes/general/session_handler.php:28
#6: CSecuritySessionHandler->write(string, string)
	
#7: session_regenerate_id()
	/home/bitrix/www/bitrix/modules/security/classes/general/session.php:55
#8: CSecuritySession::UpdateSessID()
	/home/bitrix/www/bitrix/modules/main/classes/general/module.php:465
#9: ExecuteModuleEventEx(array)
	/home/bitrix/www/bitrix/modules/main/include.php:303
#10: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:14
#11: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog.php:10
#12: require_once(string)
	/home/bitrix/www/bitrix/header.php:1
#13: require(string)
	/home/bitrix/www/kontakty/index.php:2