Nouns ending in -aille are usually feminine.
Is pagaille masculine or feminine?
lapagaille
The rule behind it
95.8% of -aille nouns are feminine
In context
Il y a plein de pagaille à ranger.
There's a lot of mess to clear up.
Qui prend la responsabilité de cette pagaille ?
Who's taking responsibility for this mess?
Je savais que vous sèmeriez la pagaille.
I knew you'd mess things up.