Why did some people want to reform the catholic church in the 1400s

they believed that the Church had moved away from its core teachings and became corrupt.

Explanation:

The Protestant Reformation had causes related to political, economic and theological aspects and resulted from the corruption existing in the Catholic Church. In addition, it was the result of political interests from nobles who saw in the reform a possibility of breaking the bond of authority with the pope. Finally, the question of economic interests was imposed, since the Church stipulated the collection of very high taxes from all its faithful. These things led some people to believe that the Catholic Church had become corrupt and that some changes had to be made.