Hello, and welcome to OSM.

I am sure you have good intentions, but unfortunately your edit caused a few problems.

For a first, we should not use ALL-CAPS NAMES in OSM.  This is felt like a screaming map, and, as you may have seen when looking at the map, we don’t write names like this.

Also, OSM is a database, and we generally should not repeat the same information multiple times, like naming several buildings identically.  Please do not type addresses yourself; all the addresses in Brussels are already correctly set.  I understand that this might be difficult to grasp on your first contributions, so we fixed everything here.

Have a nice day.