Debug info: SELECT id,firstname,lastname,email,description,department,picture FROM {user} WHERE id IS NULL
[array (
)]
Error code: invaliduser × Dismiss this notification

Stack trace:

• line 1658 of /lib/dml/moodle_database.php: dml_missing_record_exception thrown
• line 1634 of /lib/dml/moodle_database.php: call to moodle_database->get_record_select()
• line 39 of /pages/teacher-detail/index.php: call to moodle_database->get_record()

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