[RuntimeException] Could not start session because headers have already been sent. "/home/bitrix/www/bitrix/templates/ZO2021_chi/menu.php":56. (0) /home/bitrix/www/bitrix/modules/main/lib/session/session.php:151 #0: Bitrix\Main\Session\Session->start /home/bitrix/www/bitrix/modules/main/lib/session/kernelsessionproxy.php:47 #1: Bitrix\Main\Session\KernelSessionProxy->start /home/bitrix/www/bitrix/modules/main/include.php:155 #2: require_once(string) /home/bitrix/www/bitrix/modules/main/include/prolog_before.php:14 #3: require_once(string) /home/bitrix/www/ch/index.php:2 ----------