Toronto doesn’t have a “slug” for some reason: https://api.inaturalist.org/v1/places/27608. i suppose one way to address this would be to add a slug, or i suppose the search could send you to the places page based on place id when slug doesn’t exist.
a slug is a human-friendly identifier. the iNaturalist numeric place id for the the United States is 1, but its slug is united-states. similarly, Toronto’s place id is 27608, but its slug should be something like toronto-on-ca.