lol
[RuntimeException] 
Could not start session because headers have already been sent. "/home/host1796381/cvetmir3d.ru/htdocs/www/local/php_interface/init.php":9. (0)
/home/host1796381/cvetmir3d.ru/htdocs/www/bitrix/modules/main/lib/session/session.php:117
#0: Bitrix\Main\Session\Session->start()
	/home/host1796381/cvetmir3d.ru/htdocs/www/bitrix/modules/main/lib/session/kernelsessionproxy.php:42
#1: Bitrix\Main\Session\KernelSessionProxy->start()
	/home/host1796381/cvetmir3d.ru/htdocs/www/bitrix/modules/main/include.php:180
#2: require_once(string)
	/home/host1796381/cvetmir3d.ru/htdocs/www/bitrix/modules/main/include/prolog_before.php:14
#3: require_once(string)
	/home/host1796381/cvetmir3d.ru/htdocs/www/bitrix/modules/main/include/prolog.php:10
#4: require_once(string)
	/home/host1796381/cvetmir3d.ru/htdocs/www/bitrix/header.php:1
#5: require(string)
	/home/host1796381/cvetmir3d.ru/htdocs/www/blog/index.php:2
#6: include_once(string)
	/home/host1796381/cvetmir3d.ru/htdocs/www/bitrix/modules/main/include/urlrewrite.php:159
#7: include_once(string)
	/home/host1796381/cvetmir3d.ru/htdocs/www/bitrix/urlrewrite.php:2