Why did the church lose power during the Renaissance?

because people didn't git killed as often for questioning the masters A.K.A CHURCH

Wrong, the church lost power because of the unification of the "new monarchs". It was no longer church over state, as this was a threat to the sovereign power of the monarch. Not only that, but before that an event known as the Great Schism took place and the church lost a lot of reputation then. Then there was the Avignon papacy, which really screwed the church over. That is why the church lost power during the Renaissance.