Hi and welcome to OSM,

here you changed a  stream into a highway=primary : https://www.openstreetmap.org/way/476569787/history

and  here as well: https://www.openstreetmap.org/way/476569790

These changes do not make sense because there are already existing roads and the new ones are not even connected. These changes also do not match your changeset title "Made some pedestrian roads into bus roads". Can you please describe what you intend with your changes? 
Maye I can help out with how you can properly apply your change then.

I believe the best might be to completely revert this change and start again from scratch. I may apply this revert for you based on your response.

Thank you
ratrun