Yes, a single dungeon that closes if there is a player, but so that when the player dies / exits the server or the dungeon, the entrance itself opens again.
I tried changing the variable when exiting \ entering, but it doesn’t work, the variable will not change if the player dies in the dungeon or exits the server, I did so the variable changed when entering and then back when leaving the dungeon, I didn’t come up with another scheme.
and yes, without party