[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [localhost:31006, localhost:31006] (400)
/home/videopraktika.ru/videopraktika.rf/bitrix/modules/main/lib/db/mysqlconnection.php:50
#0: Bitrix\Main\DB\MysqlConnection->connectInternal()
	/home/videopraktika.ru/videopraktika.rf/bitrix/modules/main/lib/db/mysqlconnection.php:103
#1: Bitrix\Main\DB\MysqlConnection->queryInternal(string, array, NULL)
	/home/videopraktika.ru/videopraktika.rf/bitrix/modules/main/lib/db/connection.php:329
#2: Bitrix\Main\DB\Connection->query(string)
	/home/videopraktika.ru/videopraktika.rf/bitrix/modules/main/lib/mail/eventmanager.php:191
#3: Bitrix\Main\Mail\EventManager::cleanUpAgent()
	/home/videopraktika.ru/videopraktika.rf/bitrix/modules/main/classes/general/event.php:30
#4: CAllEvent::CleanUpAgent()
	/home/videopraktika.ru/videopraktika.rf/bitrix/modules/main/classes/mysql/agent.php(159) : eval()'d code:1
#5: eval()
	/home/videopraktika.ru/videopraktika.rf/bitrix/modules/main/classes/mysql/agent.php:159
#6: CAgent::ExecuteAgents(string)
	/home/videopraktika.ru/videopraktika.rf/bitrix/modules/main/classes/mysql/agent.php:38
#7: CAgent::CheckAgents()
	/home/videopraktika.ru/videopraktika.rf/bitrix/modules/main/include.php:270
#8: require_once(string)
	/home/videopraktika.ru/videopraktika.rf/bitrix/modules/main/include/prolog_before.php:14
#9: require_once(string)
	/home/videopraktika.ru/videopraktika.rf/bitrix/modules/main/include/prolog.php:10
#10: require_once(string)
	/home/videopraktika.ru/videopraktika.rf/bitrix/header.php:1
#11: require(string)
	/home/videopraktika.ru/videopraktika.rf/index.php:1