[RuntimeException] 
Could not start session because headers have already been sent. "/NFS/site/www/ufacity.info/bitrix/header.php":3. (0)
/NFS/site/www/ufacity.info/bitrix/modules/main/lib/session/session.php:151
#0: Bitrix\Main\Session\Session->start
	/NFS/site/www/ufacity.info/bitrix/modules/main/lib/session/kernelsessionproxy.php:47
#1: Bitrix\Main\Session\KernelSessionProxy->start
	/NFS/site/www/ufacity.info/bitrix/modules/main/include.php:180
#2: require_once(string)
	/NFS/site/www/ufacity.info/bitrix/modules/main/include/prolog_before.php:19
#3: require_once(string)
	/NFS/site/www/ufacity.info/bitrix/modules/main/include/prolog.php:10
#4: require_once(string)
	/NFS/site/www/ufacity.info/bitrix/header.php:7
#5: require(string)
	/NFS/site/www/ufacity.info/uvigo/index.php:38
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