[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [localhost, 127.0.0.1]: User amperkinrus already has more than 'max_user_connections' active connections (400)
/var/www/amperkin/data/www/amperkin.ru/bitrix/modules/main/lib/db/mysqlconnection.php:50
#0: Bitrix\Main\DB\MysqlConnection->connectInternal()
	/var/www/amperkin/data/www/amperkin.ru/bitrix/modules/main/lib/db/mysqlconnection.php:103
#1: Bitrix\Main\DB\MysqlConnection->queryInternal(string, array, NULL)
	/var/www/amperkin/data/www/amperkin.ru/bitrix/modules/main/lib/db/connection.php:329
#2: Bitrix\Main\DB\Connection->query(string)
	/var/www/amperkin/data/www/amperkin.ru/bitrix/modules/main/lib/modulemanager.php:20
#3: Bitrix\Main\ModuleManager::getInstalledModules()
	/var/www/amperkin/data/www/amperkin.ru/bitrix/modules/main/lib/loader.php:77
#4: Bitrix\Main\Loader::includeModule(string)
	/var/www/amperkin/data/www/amperkin.ru/bitrix/modules/main/lib/data/connectionpool.php:308
#5: Bitrix\Main\Data\ConnectionPool->createSlaveConnection()
	/var/www/amperkin/data/www/amperkin.ru/bitrix/modules/main/lib/data/connectionpool.php:247
#6: Bitrix\Main\Data\ConnectionPool->getSlaveConnection(string)
	/var/www/amperkin/data/www/amperkin.ru/bitrix/modules/main/lib/db/connection.php:317
#7: Bitrix\Main\DB\Connection->query(string)
	/var/www/amperkin/data/www/amperkin.ru/bitrix/modules/main/lib/eventmanager.php:248
#8: Bitrix\Main\EventManager->loadEventHandlers()
	/var/www/amperkin/data/www/amperkin.ru/bitrix/modules/main/lib/eventmanager.php:340
#9: Bitrix\Main\EventManager->findEventHandlers(string, string)
	/var/www/amperkin/data/www/amperkin.ru/bitrix/modules/main/classes/general/module.php:340
#10: GetModuleEvents(string, string, boolean)
	/var/www/amperkin/data/www/amperkin.ru/bitrix/modules/main/include.php:288
#11: include_once(string)
	/var/www/amperkin/data/www/amperkin.ru/404.php:3