scheduled task failure: \qtype_random\task\remove_unused_questions

Execute scheduled task: Remove unused random questions (qtype_random\task\remove_unused_questions)

... used 5097 dbqueries

... used 8.9891879558563 seconds

Scheduled task failed: Remove unused random questions (qtype_random\task\remove_unused_questions),Can't find data record in database table context.

Debug info:

SELECT * FROM \{context} WHERE id = ?

[array (

 0 => '2040510',

)]

Backtrace:

* line 1538 of /lib/dml/moodle_database.php: call to moodle_database->get_record_select()

* line 5191 of /lib/accesslib.php: call to moodle_database->get_record()

* line 221 of /lib/classes/event/base.php: call to context::instance_by_id()

* line 125 of /lib/classes/event/question_base.php: call to core\event\base::create()

* line 385 of /lib/questionlib.php: call to core\event\question_base::create_from_question_instance()

* line 61 of /question/type/random/classes/task/remove_unused_questions.php: call to question_delete_question()

* line 157 of /admin/tool/task/cli/schedule_task.php: call to qtype_random\task\remove_unused_questions->execute()