[RuntimeException] 
Could not start session because headers have already been sent. "/home/l/liomanxs/liomanxs.beget.tech/public_html/404.php":28. (0)
/home/l/liomanxs/liomanxs.beget.tech/public_html/bitrix/modules/main/lib/session/session.php:151
#0: Bitrix\Main\Session\Session->start()
	/home/l/liomanxs/liomanxs.beget.tech/public_html/bitrix/modules/main/lib/session/kernelsessionproxy.php:47
#1: Bitrix\Main\Session\KernelSessionProxy->start()
	/home/l/liomanxs/liomanxs.beget.tech/public_html/bitrix/modules/main/include.php:159
#2: require_once(string)
	/home/l/liomanxs/liomanxs.beget.tech/public_html/bitrix/modules/main/include/prolog_before.php:14
#3: require(string)
	/home/l/liomanxs/liomanxs.beget.tech/public_html/404.php:49
#4: include_once(string)
	/home/l/liomanxs/liomanxs.beget.tech/public_html/bitrix/urlrewrite.php:4
----------