If you don't want to create a new profile yet, check if Outlook is looking in the right place.
How to Fix the "Download Offline Address Book Error: Object Not Found" download offline address book error object not found
This error typically triggers when you try to manually or automatically download the Offline Address Book (OAB). It usually points to a corruption in your Outlook profile or a pathing issue between your client and the Exchange server. If you don't want to create a new
Once finished, back in the "Mail" window, select and choose your new one from the dropdown. back in the "Mail" window
Use the Microsoft Remote Connectivity Analyzer to ensure Autodiscover is functioning, as Outlook uses it to find the OAB URL.