Вот ошибка
GET [URL=https://an-rus.ru/bitrix/admin/settings.php?lang=ru&mid=rbrm.realty&mid_menu=1]/bitrix/admin/settings.php?lang=ru&mid=rbrm.realty&mid_menu=1[/URL] 500 (Internal Server Error)
Uncaught TypeError: Cannot read properties of undefined (reading 'CAutoSave')
at settings.php?lang=ru&mid=rbrm.realty&mid_menu=1:7:98
GET [URL=https://an-rus.ru/bitrix/admin/settings.php?lang=ru&mid=rbrm.realty&mid_menu=1]/bitrix/admin/settings.php?lang=ru&mid=rbrm.realty&mid_menu=1[/URL] 500 (Internal Server Error)
Uncaught TypeError: Cannot read properties of undefined (reading 'CAutoSave')
at settings.php?lang=ru&mid=rbrm.realty&mid_menu=1:7:98