Error while enqueuing completion_update_state task. moodle_exception: The guest user is not allowed to do this in /home/irancell/public_html/lib/classes/user.php:556
Stack trace:
#0 /home/irancell/public_html/lib/classes/task/manager.php(195): core_user::require_active_user()
#1 /home/irancell/public_html/mod/resource/classes/task/completion_update_state.php(89): core\task\manager::queue_adhoc_task()
#2 /home/irancell/public_html/mod/resource/lib.php(555): mod_resource\task\completion_update_state::enqueue_completion_event()
#3 /home/irancell/public_html/mod/resource/view.php(58): resource_view()
#4 {main}
Blockchain Basics: 4-0 The potential obstacles to blockchain adoption