Hello Osh B,
Thanks for your question.
This error usually occurs when you sign in using your personal account which is not added as an guest user to an Entra tenant.
Ask the Scoop Digital admin to add you then proceed to sign in with a private tab
If the above does not resolve you can further go through the steps here:
You can mark it 'Accept Answer' and 'Upvote' if this helped you
Regards,
Abiola