Hi Awinebotima, thanks for contributing to the map in Ghana. As a new mapper you should be aware that OSM uses multiple imagery sources and they all do not have the same alignment so the data may not align with some or any of them at a particular place. 

With the help of GPS traces we are able to correct these and save these offsets in a database. https://wiki.openstreetmap.org/wiki/Imagery_Offset_Database#JOSM_Plugin

Kindly read a little about this and always check before you realign objects. 

Your realignment was not properly done and unfortunately has to be reversed.

Reverted by: https://www.openstreetmap.org/changeset/150724677