Stone didn't appear

In a certain location, the bell started ringing all the time, and I called the Stone, and there was a boss, and I saw on YouTube that Stone appeared and helped to kill the boss, but he didn't appear in my game, even though I used the summoning item, and when I used this item again 50 times in this location, it said: You have already summoned Stone, but he was nowhere to be seen. I don't know what to do