Hello Celine,
I hear what you're saying, and I know how important it is to submit your T4s on time. There were issues reported after we released the autofill feature for the T4 forms in QuickBooks Desktop. In order to reduce the issues that were occurring, we've shut off the autofill feature. This means that the boxes that autofilled are now empty. Our engineers are working hard around the clock to ensure that this feature is fixed and back up and running as soon as possible.
You still have the option to follow the steps in this article in order to manually fill the boxes: How to edit COVID-related boxes on the T4 slip.
Rest assured that we're working to get this fixed as fast as we can, so we thank you for your patience. Don't hesitate to reach out if you have any other questions. Take care.