[Error] 
Call to undefined method Bitrix\Main\DB\MysqliSqlHelper::addDaysToDateTime() (0)
/var/www/mininggroup__usr/data/www/mininggroup.pro/bitrix/modules/forum/classes/general/user.php:2181
#0: CALLForumStat::CleanUp
	/var/www/mininggroup__usr/data/www/mininggroup.pro/bitrix/modules/main/classes/mysql/agent.php(166) : eval()'d code:1
#1: eval
	/var/www/mininggroup__usr/data/www/mininggroup.pro/bitrix/modules/main/classes/mysql/agent.php:166
#2: CAgent::ExecuteAgents
	/var/www/mininggroup__usr/data/www/mininggroup.pro/bitrix/modules/main/classes/mysql/agent.php:21
#3: CAgent::CheckAgents
	
#4: call_user_func_array
	/var/www/mininggroup__usr/data/www/mininggroup.pro/bitrix/modules/main/lib/application.php:710
#5: Bitrix\Main\Application->runBackgroundJobs
	/var/www/mininggroup__usr/data/www/mininggroup.pro/bitrix/modules/main/lib/application.php:304
#6: Bitrix\Main\Application->terminate
	/var/www/mininggroup__usr/data/www/mininggroup.pro/bitrix/modules/main/lib/application.php:271
#7: Bitrix\Main\Application->end
	/var/www/mininggroup__usr/data/www/mininggroup.pro/bitrix/modules/main/classes/general/main.php:3467
#8: CAllMain::FinalActions
	/var/www/mininggroup__usr/data/www/mininggroup.pro/bitrix/modules/main/include/epilog_after.php:58
#9: require(string)
	/var/www/mininggroup__usr/data/www/mininggroup.pro/bitrix/modules/main/include/epilog.php:3
#10: require_once(string)
	/var/www/mininggroup__usr/data/www/mininggroup.pro/bitrix/footer.php:4
#11: require(string)
	/var/www/mininggroup__usr/data/www/mininggroup.pro/kalkulator-bit/index.php:19
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