The queue_assignment_overdue_notification_tasks_for_users is failing if the user is suspended. It seems like that should be more graceful in that situation.

Full Debug:
Execute adhoc task: mod_assign\task\queue_assignment_overdue_notification_tasks_for_users
Adhoc task id: 2632371
Adhoc task custom data: {"id":"34786"}
... started 04:49:17. Current memory use 21.4 MB.
Debugging increased temporarily due to faildelay of 7680
... used 150 dbqueries
... used 1.0112090110779 seconds
Adhoc task failed: mod_assign\task\queue_assignment_overdue_notification_tasks_for_users,Suspended account
Backtrace:

• line 249 of /lib/classes/task/manager.php: call to core\user::require_active_user()
• line 45 of /mod/assign/classes/task/queue_assignment_overdue_notification_tasks_for_users.php: call to core\task\manager::queue_adhoc_task()
• line 519 of /lib/classes/cron.php: call to mod_assign\task\queue_assignment_overdue_notification_tasks_for_users->execute()
• line 302 of /lib/classes/cron.php: call to core\cron::run_inner_adhoc_task()
• line 128 of /lib/classes/cron.php: call to core\cron::run_adhoc_tasks()
• line 186 of /admin/cli/cron.php: call to core\cron::run_main_process()