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[RuntimeException] Could not start session because headers have already been sent. "/home/h303777320/h303777320.nichost.ru/docs/education/schedule/section.php":1. (0) /home/h303777320/h303777320.nichost.ru/docs/bitrix/modules/main/lib/session/session.php:144 #0: Bitrix\Main\Session\Session->start() /home/h303777320/h303777320.nichost.ru/docs/bitrix/modules/main/lib/session/kernelsessionproxy.php:47 #1: Bitrix\Main\Session\KernelSessionProxy->start() /home/h303777320/h303777320.nichost.ru/docs/bitrix/modules/main/include.php:181 #2: require_once(string) /home/h303777320/h303777320.nichost.ru/docs/bitrix/modules/main/include/prolog_before.php:19 #3: require_once(string) /home/h303777320/h303777320.nichost.ru/docs/bitrix/modules/main/include/prolog.php:10 #4: require_once(string) /home/h303777320/h303777320.nichost.ru/docs/bitrix/header.php:1 #5: require(string) /home/h303777320/h303777320.nichost.ru/docs/education/schedule/section.php:2 #6: include_once(string) /home/h303777320/h303777320.nichost.ru/docs/bitrix/modules/main/include/urlrewrite.php:178 #7: include_once(string) /home/h303777320/h303777320.nichost.ru/docs/bitrix/urlrewrite.php:2 ----------