This is a review page for the eID Firefox add-on, which I'm assuming is not broken; it has nothing to do with the eID Viewer. Please do not confuse the two; undeserved bad reviews for the add-on has problematic results for the installability of this add-on.

Have you tried filing a support request at https://eid.belgium.be/nl/contact ? The people who receive submissions through that form will be happy to help you out.