This error typically occurs when a set of credentials is working, but cannot be used to access the specific data source.
Error: We have lost access to the data source. Ensure the credentials have access to the account, or try signing in again.
How to resolve this error
To fix the error:
Log in to the data source, such as GA4, Meta or other, using the credentials that appear to have lost access.
Confirm that you can still access the data source. If you cannot, you will need to regain access to that account to resolve the error. If you do have access, reach out to Alvie support to get the error resolved.
If you encounter any further issues or need additional assistance, please don't hesitate to reach out to the Alvie support team.