Hello Lockhart Erbold,
Greetings! Thanks for raising this question in the Q&A forum
The link you followed points to tfs.wellsfargo.net, which is Wells Fargo's own internal Azure DevOps Server (TFS) instance running on their corporate network, not a Microsoft hosted service. Microsoft Q&A does not have visibility into internal company identity providers, corporate SSO configurations, or internally hosted TFS servers, so this is not something that can be diagnosed or fixed from here.
Please contact your Wells Fargo internal IT helpdesk or your team's Azure DevOps administrator directly, since they manage the single sign on integration between Wells Fargo's identity provider and that internal TFS instance, and only they can restore your access or investigate the SSO error you hit.
If this answer helps you kindly accept the answer which will help others who have similar questions.
Best Regards,
Jerald Felix.