“Are these three signs together a bad mixture?”
No. What has to be taken into consideration (in this instance) is how the planets affect the horoscope of France. France has the sign Aries Rising @ 20*. On April 15, 2019, Saturn was transiting the 10th house (destiny) of France and formed a square to the Ascendant (Rising Sign), signaling something painful was about to occur. As Saturn is natally placed in the 9th house of religion/churches, that is where the pain would be experienced.