Failed to Query for Tournament Rules Fortnite: Fortnite Hype Night Ruined by Errors
By Nathan Fusco

Failed to Query for Tournament Rules is an error message players are receiving when they tried to log in for the Fortnite Hype Night. The new Fortnite event was supposed to be a fun way for players to climb the ladder and test out their skills, but it was ruined for many players.
But is there a way to fix it? As of right now, Epic Games has finally acknowledge the bug and has apparently fixed it.
We’ve fixed an error with the Hype Nite tournament rules preventing some players from queuing into Hype Nite.
— Fortnite Competitive (@FNCompetitive) March 6, 2020
Hype Nites’ tournament windows will be extended by 45 minutes for the Brazil and NAE server region.
Failed to Query for Tournament Rules Fortnite: Any Known Fixes
One of the first fixes is to make sure you have two-factor authentication enabled. However, some players have stated they have it enabled, but they still can't queue. Others have stated if you have the Battle Pass purchased, it won't be an issue.
But apparently, Epic Games has fixed it for most players. If you are still dealing with issues, make sure to contact Epic Games support. Or you could try one of the remedies above to fix it yourself.