[Steven Zahm]

@ Jillian

At this point, I do not believe this would be related to a WP update. What other updates and server related types of changes were made?

Can you please navigate to the Connections : Tools admin page and click the System Info tab. Scroll to the bottom and generate a share link. Reply back, as a private reply, with that link.

OR, create an admin login using this plugin

https://wordpress.org/plugins/temporary-login-without-password/

Reply back, as a private reply, with the login link.