Thank you for the additional details.
The issue you are facing likely stems from using a personal OneDrive with Power Apps, as it typically requires OneDrive for Business to connect properly with work accounts. I recommend saving the Contoso Site Tracking.xlsx file to your OneDrive for Business associated with your work email and trying the connection again.
Please let me know if you continue facing issues, and feel free to share a screenshot if the error persists.
If the information is helpful, please Accept Answer and Upvote so that it would be helpful to community members.
Thank you.