1. Go in the church at the begining
2. Back to Judy near the Street Lamp and follow the quest
3. When you need to search an entry at the church, use the hole on the roof and go to the "autel" without looking back.
The problem was solved by simply restarting the game, I didn't do the optional objective and at the entrance of the church I waited for Judy to enter completely and "don't bug", I don't know if the problem was solved by waiting or by not doing the optional objective but it works!