[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [localhost, 127.0.0.1]: Too many connections (400)
/var/vhosts/admlangepas/bitrix/modules/main/lib/db/mysqlconnection.php:50
#0: Bitrix\Main\DB\MysqlConnection->connectInternal()
	/var/vhosts/admlangepas/bitrix/modules/main/lib/db/mysqlconnection.php:103
#1: Bitrix\Main\DB\MysqlConnection->queryInternal(string, array, NULL)
	/var/vhosts/admlangepas/bitrix/modules/main/lib/db/connection.php:330
#2: Bitrix\Main\DB\Connection->query(string)
	/var/vhosts/admlangepas/bitrix/modules/main/lib/eventmanager.php:249
#3: Bitrix\Main\EventManager->loadEventHandlers()
	/var/vhosts/admlangepas/bitrix/modules/main/lib/eventmanager.php:346
#4: Bitrix\Main\EventManager->findEventHandlers(string, string, NULL)
	/var/vhosts/admlangepas/bitrix/modules/main/lib/eventmanager.php:381
#5: Bitrix\Main\EventManager->send(object)
	/var/vhosts/admlangepas/bitrix/modules/main/lib/event.php:142
#6: Bitrix\Main\Event->send()
	/var/vhosts/admlangepas/bitrix/modules/main/classes/general/usertype.php:1261
#7: CUserTypeManager->getEntityList()
	/var/vhosts/admlangepas/bitrix/modules/main/lib/orm/entity.php:297
#8: Bitrix\Main\ORM\Entity->postInitialize()
	/var/vhosts/admlangepas/bitrix/modules/main/lib/orm/entity.php:120
#9: Bitrix\Main\ORM\Entity::getInstanceDirect(string)
	/var/vhosts/admlangepas/bitrix/modules/main/lib/orm/entity.php:103
#10: Bitrix\Main\ORM\Entity::getInstance(string)
	/var/vhosts/admlangepas/bitrix/modules/main/lib/orm/data/datamanager.php:82
#11: Bitrix\Main\ORM\Data\DataManager::getEntity()
	/var/vhosts/admlangepas/bitrix/modules/security/lib/session.php:110
#12: Bitrix\Security\SessionTable::lock(string, integer)
	/var/vhosts/admlangepas/bitrix/modules/security/classes/general/session_db.php:52
#13: CSecuritySessionDB::read(string)
	
#14: session_start()
	/var/vhosts/admlangepas/bitrix/modules/main/include.php:281
#15: require_once(string)
	/var/vhosts/admlangepas/bitrix/modules/main/include/prolog_before.php:14
#16: require_once(string)
	/var/vhosts/admlangepas/bitrix/modules/main/include/prolog.php:10
#17: require_once(string)
	/var/vhosts/admlangepas/bitrix/header.php:1
#18: require(string)
	/var/vhosts/admlangepas/programs-and-competitions/index.php:2
#19: include_once(string)
	/var/vhosts/admlangepas/bitrix/modules/main/include/urlrewrite.php:159
#20: include_once(string)
	/var/vhosts/admlangepas/bitrix/urlrewrite.php:2

Fatal error: Uncaught exception 'Bitrix\Main\DB\ConnectionException' with message 'Mysql connect error [localhost, 127.0.0.1]: Too many connections' in /var/vhosts/admlangepas/bitrix/modules/main/lib/db/mysqlconnection.php:50 Stack trace: #0 /var/vhosts/admlangepas/bitrix/modules/main/lib/db/mysqlconnection.php(103): Bitrix\Main\DB\MysqlConnection->connectInternal() #1 /var/vhosts/admlangepas/bitrix/modules/main/lib/db/connection.php(330): Bitrix\Main\DB\MysqlConnection->queryInternal('\n\t\t\t\tSELECT FRO...', Array, NULL) #2 /var/vhosts/admlangepas/bitrix/modules/main/lib/eventmanager.php(249): Bitrix\Main\DB\Connection->query('\n\t\t\t\tSELECT FRO...') #3 /var/vhosts/admlangepas/bitrix/modules/main/lib/eventmanager.php(346): Bitrix\Main\EventManager->loadEventHandlers() #4 /var/vhosts/admlangepas/bitrix/modules/main/lib/eventmanager.php(381): Bitrix\Main\EventManager->findEventHandlers('main', 'onUserTypeEntit...', NULL) #5 /var/vhosts/admlangepas/bitrix/modules/main/lib/event.php(142): Bitrix\Main\EventManager->send(O in /var/vhosts/admlangepas/bitrix/modules/main/lib/db/mysqlconnection.php on line 50