I think you should update the data in your app.  I removed Canto 21 from the database in December last year.  We even had a discussion about your previous changeset where you added a secondary name tag with the new name instead of updating the main name directly.

In Organic Map, select Download Maps, then "Update all" and you should get a more recent copy of the database for Belgium.  (Apparently, there are refreshes once a month but it will be much better than anything that still has Canto 21 in it.)