Онлайн-курсы в образовательной деятельности. Тенденции развития

Debug info:
Error code: cannotfindpages × Dismiss this notification

Stack trace:

• line 5223 of /mod/lesson/locallib.php: core\exception\moodle_exception thrown
• line 2332 of /mod/lesson/locallib.php: call to lesson_page_type_manager->load_page()
• line 3283 of /mod/lesson/locallib.php: call to lesson->load_page()
• line 227 of /mod/lesson/view.php: call to lesson->prepare_page_and_contents()

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