Hello and welcome to OSM,

It looks like you tried to add addresses to this multi-family house. When adding addresses to buildings in OSM there are certain rules that need to be observed in order for that data to be useful to navigation programs and things of that nature. The complete documentation on adding addresses can be found here :https://wiki.openstreetmap.org/wiki/Key:addr:*

However, if you (like me) don't enjoy reading a bunch of boring documentation just to figure out something trivial you can use this multi-family house that I mapped as an example: https://www.openstreetmap.org/way/1066702889

Let me know if you need any help or clarification.

RedEyedVireo.