Why did people challenge Copernicus idea that the sun was at the center of the universe? What was missing in their logic?

They challenge Copernicus because

1. People back then wet not open minded. Think of it as trying to explain to your old school grandparents that being gay is okay. They are usually closed minded because that was not how they were raised. So the people did not want to be said they were wrong and they didn't want there reputations as scholars (most of them were scholars) to be tarnished. They're logic was that they weren't open minded.