[ArgumentCountError] 
Too few arguments to function CAllMain::SetTitle(), 0 passed in /home/bitrix/www/events/video-it2018/index.php on line 4 and at least 1 expected (0)
/home/bitrix/www/bitrix/modules/main/classes/general/main.php:435
#0: CAllMain->SetTitle()
	/home/bitrix/www/events/video-it2018/index.php:4