no. you find the npc who gave you the demoonslayer upgrade quest, enter inside the mini istance created just for you , defeat the boss, report, done
What happens if you click on the "zip" icon to teleport to the location of the test?
If it's your 5th stage of the demonslayer rank, maybe you can remember what is it about; At each stage, you had to pass a fight test, depending on your class, in a large arena, with 2 NPCs on the side.
As Mivi answered, you have to pass this test once again, and the NPC should teleport you inside the arena.
You may try to opt out the quest and take it again (in the available tab of the quest journal) and be teleported by the NPC.
Ty guys. I finished quest after opting out and taking it again.