Autodiscover failed to find the EWS url for mailbox (4245718)

On Demand for email migration interrupted. Attempting to migrate a user, and getting the following errors [1/2]The request failed. The remote server returned an error: (401) Unauthorized. The remote server returned an error: (401) Unauthorized. (The remote server returned an error: (401) Unauthorized.) 12/7/2021, 9:22:51 AM [2/2]The request failed. The remote server returned an error: (401) Unauthorized. The remote server returned an error: (401) Unauthorized. (The request failed. The remote server returned an error: (401) Unauthorized.) 12/7/2021, 9:22:51 AM Autodiscover failed to find the EWS url for mailbox fistnamelastname@company.com. 12/7/2021, 9:22:51 AM Could not locate mailbox using Autodiscover(Could not locate mailbox using Autodiscover) 12/7/2021, 9:22:51 AM Error creating target session. Could not locate mailbox using Autodiscover(Could not locate mailbox using Autodiscover)