If you are unable to view or access your blocked sender or blocked emails list in Outlook, you can try the following steps:

1. Log out of your Outlook account and then log back in.
2. Check your spam folder and settings to make sure they are the same as your blocked senders and emails list.
3. Disable third-party plugins or add-ins in case they are preventing the list from being visible.
4. Open the Outlook email app in safe mode or as a different user.
5. Try editing the registry setting of your Microsoft Outlook account.