Sorry about the problem uploading reviews in the latest update.
The old version used an API token that didn’t have permission to upload reviews through the API. The new version gets the right API token when you log in, but I didn’t test upgrading from an old API token properly.
I’ve got a fix in review with Apple now. When you install it it’ll ask for your password again, get a new API token, and will start uploading your saved reviews.
Don’t log out and back in again yet otherwise you’ll lose your saved progress.